1234889897536 has 63 divisors (see below), whose sum is σ = 2603428599457. Its totient is φ = 581053537280.

The previous prime is 1234889897399. The next prime is 1234889897551. The reversal of 1234889897536 is 6357989884321.

The square root of 1234889897536 is 1111256.

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., 961419470400 + 273470427136 = 980520^2 + 522944^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 151126731 + ... + 151134901.

Almost surely, 2^{1234889897536} is an apocalyptic number.

1234889897536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1234889897536 is the 1111256-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234889897536

1234889897536 is an abundant number, since it is smaller than the sum of its proper divisors (1368538701921).

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

1234889897536 is an frugal number, since it uses more digits than its factorization.

1234889897536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388 (or 8190 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 73.

The spelling of 1234889897536 in words is "one trillion, two hundred thirty-four billion, eight hundred eighty-nine million, eight hundred ninety-seven thousand, five hundred thirty-six".