99858747057 has 16 divisors (see below), whose sum is σ = 133630015680. Its totient is φ = 66330294272.

The previous prime is 99858747047. The next prime is 99858747061. The reversal of 99858747057 is 75074785899.

It is a cyclic number.

It is not a de Polignac number, because 99858747057 - 2³⁰ = 98785005233 is a prime.

It is a super-2 number, since 2×99858747057² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99858746982 and 99858747000.

It is not an unprimeable number, because it can be changed into a prime (99858747047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295833 + ... + 1370729.

It is an arithmetic number, because the mean of its divisors is an integer number (8351875980).

Almost surely, 2^99858747057 is an apocalyptic number.

It is an amenable number.

99858747057 is a deficient number, since it is larger than the sum of its proper divisors (33771268623).

99858747057 is a wasteful number, since it uses less digits than its factorization.

99858747057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76512.

The product of its (nonzero) digits is 177811200, while the sum is 69.

The spelling of 99858747057 in words is "ninety-nine billion, eight hundred fifty-eight million, seven hundred forty-seven thousand, fifty-seven".