94871805128 has 8 divisors (see below), whose sum is σ = 177884634630. Its totient is φ = 47435902560.

The previous prime is 94871805121. The next prime is 94871805163. The reversal of 94871805128 is 82150817849.

It can be written as a sum of positive squares in only one way, i.e., 76130742724 + 18741062404 = 275918^2 + 136898^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 94871805128.

It is not an unprimeable number, because it can be changed into a prime (94871805121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5929487813 + ... + 5929487828.

Almost surely, 2^94871805128 is an apocalyptic number.

It is an amenable number.

94871805128 is a deficient number, since it is larger than the sum of its proper divisors (83012829502).

94871805128 is a wasteful number, since it uses less digits than its factorization.

94871805128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858975647 (or 11858975643 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 94871805128 in words is "ninety-four billion, eight hundred seventy-one million, eight hundred five thousand, one hundred twenty-eight".