1232357533456 has 135 divisors (see below), whose sum is σ = 2849863914837. Its totient is φ = 514738586880.

The previous prime is 1232357533307. The next prime is 1232357533457. The reversal of 1232357533456 is 6543357532321.

The square root of 1232357533456 is 1110116.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 59381891856 + 1172975641600 = 243684^2 + 1083040^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232357533457) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1274412685 + ... + 1274413651.

Almost surely, 2^{1232357533456} is an apocalyptic number.

1232357533456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1232357533456 is the 1110116-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232357533456

1232357533456 is an abundant number, since it is smaller than the sum of its proper divisors (1617506381381).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232357533456 is an frugal number, since it uses more digits than its factorization.

1232357533456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038 (or 1017 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 49.

Multiplying 1232357533456 by its sum of digits (49), we get a square (60385519139344 = 7770812²).

1232357533456 divided by its sum of digits (49) gives a square (25150153744 = 158588²).

The spelling of 1232357533456 in words is "one trillion, two hundred thirty-two billion, three hundred fifty-seven million, five hundred thirty-three thousand, four hundred fifty-six".