1326077320572 has 192 divisors, whose sum is σ = 3742728192000. Its totient is φ = 404661127104.

The previous prime is 1326077320543. The next prime is 1326077320577. The reversal of 1326077320572 is 2750237706231.

It is a happy number.

1326077320572 is a `hidden beast` number, since 1 + 3 + 2 + 6 + 0 + 7 + 73 + 2 + 0 + 572 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326077320577) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7532053 + ... + 7706099.

It is an arithmetic number, because the mean of its divisors is an integer number (19493376000).

Almost surely, 2^{1326077320572} is an apocalyptic number.

1326077320572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326077320572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871364096000).

1326077320572 is an abundant number, since it is smaller than the sum of its proper divisors (2416650871428).

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

1326077320572 is a wasteful number, since it uses less digits than its factorization.

1326077320572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174205 (or 174197 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The spelling of 1326077320572 in words is "one trillion, three hundred twenty-six billion, seventy-seven million, three hundred twenty thousand, five hundred seventy-two".