8812138809657 has 32 divisors (see below), whose sum is σ = 12268157460480. Its totient is φ = 5620068437760.

The previous prime is 8812138809623. The next prime is 8812138809671. The reversal of 8812138809657 is 7569088312188.

It is not a de Polignac number, because 8812138809657 - 2¹⁰ = 8812138808633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8812138809857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2876668 + ... + 5089154.

It is an arithmetic number, because the mean of its divisors is an integer number (383379920640).

Almost surely, 2^{8812138809657} is an apocalyptic number.

It is an amenable number.

8812138809657 is a deficient number, since it is larger than the sum of its proper divisors (3456018650823).

8812138809657 is a wasteful number, since it uses less digits than its factorization.

8812138809657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213013.

The product of its (nonzero) digits is 46448640, while the sum is 66.

The spelling of 8812138809657 in words is "eight trillion, eight hundred twelve billion, one hundred thirty-eight million, eight hundred nine thousand, six hundred fifty-seven".