94851256983921 has 15 divisors (see below), whose sum is σ = 141691514827291. Its totient is φ = 63234112887648.

The previous prime is 94851256983893. The next prime is 94851256983937. The reversal of 94851256983921 is 12938965215849.

The square root of 94851256983921 is 9739161.

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

94851256983921 is a `hidden beast` number, since 9 + 4 + 8 + 5 + 1 + 2 + 569 + 8 + 39 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94665875070321 + 185381913600 = 9729639^2 + 430560^2 .

It is not a de Polignac number, because 94851256983921 - 2²¹ = 94851254886769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 94851256983921.

It is not an unprimeable number, because it can be changed into a prime (94851256983121) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 87111385 + ... + 88193513.

Almost surely, 2^{94851256983921} is an apocalyptic number.

94851256983921 is the 9739161-st square number.

94851256983921 is the 4869581-st centered octagonal number.

It is an amenable number.

94851256983921 is a deficient number, since it is larger than the sum of its proper divisors (46840257843370).

94851256983921 is an frugal number, since it uses more digits than its factorization.

94851256983921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164270 (or 1082132 counting only the distinct ones).

The product of its digits is 335923200, while the sum is 72.

The spelling of 94851256983921 in words is "ninety-four trillion, eight hundred fifty-one billion, two hundred fifty-six million, nine hundred eighty-three thousand, nine hundred twenty-one".