87857538101 has 4 divisors (see below), whose sum is σ = 87858459552. Its totient is φ = 87856616652.

The previous prime is 87857538077. The next prime is 87857538127. The reversal of 87857538101 is 10183575878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 87857538101 - 2³⁰ = 86783796277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87857538161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298715 + ... + 514728.

It is an arithmetic number, because the mean of its divisors is an integer number (21964614888).

Almost surely, 2^87857538101 is an apocalyptic number.

It is an amenable number.

87857538101 is a deficient number, since it is larger than the sum of its proper divisors (921451).

87857538101 is a wasteful number, since it uses less digits than its factorization.

87857538101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921450.

The product of its (nonzero) digits is 1881600, while the sum is 53.

The spelling of 87857538101 in words is "eighty-seven billion, eight hundred fifty-seven million, five hundred thirty-eight thousand, one hundred one".