996572857881 has 8 divisors (see below), whose sum is σ = 1336720480704. Its totient is φ = 660403570160.

The previous prime is 996572857837. The next prime is 996572857883. The reversal of 996572857881 is 188758275699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 996572857881 - 2³⁴ = 979392988697 is a prime.

It is a super-2 number, since 2×996572857881² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (996572857883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994583190 + ... + 994584191.

It is an arithmetic number, because the mean of its divisors is an integer number (167090060088).

Almost surely, 2^996572857881 is an apocalyptic number.

It is an amenable number.

996572857881 is a deficient number, since it is larger than the sum of its proper divisors (340147622823).

996572857881 is a wasteful number, since it uses less digits than its factorization.

996572857881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989167551.

The product of its digits is 609638400, while the sum is 75.

The spelling of 996572857881 in words is "nine hundred ninety-six billion, five hundred seventy-two million, eight hundred fifty-seven thousand, eight hundred eighty-one".