891298375396 has 81 divisors (see below), whose sum is σ = 1857049173819. Its totient is φ = 373858056000.

The previous prime is 891298375351. The next prime is 891298375399. The reversal of 891298375396 is 693573892198.

The square root of 891298375396 is 944086.

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

It can be written as a sum of positive squares in 4 ways, for example, as 373382102500 + 517916272896 = 611050^2 + 719664^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (891298375399) 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, 270006946 + ... + 270010246.

Almost surely, 2^891298375396 is an apocalyptic number.

891298375396 is the 944086-th square number.

It is an amenable number.

891298375396 is an abundant number, since it is smaller than the sum of its proper divisors (965750798423).

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

891298375396 is a wasteful number, since it uses less digits than its factorization.

891298375396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654 (or 3327 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 70.

The spelling of 891298375396 in words is "eight hundred ninety-one billion, two hundred ninety-eight million, three hundred seventy-five thousand, three hundred ninety-six".