87131311313178 has 32 divisors (see below), whose sum is σ = 190108970053632. Its totient is φ = 26402831722800.

The previous prime is 87131311313153. The next prime is 87131311313191.

87131311313178 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×87131311313178² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11948026 + ... + 17804997.

It is an arithmetic number, because the mean of its divisors is an integer number (5940905314176).

Almost surely, 2^{87131311313178} is an apocalyptic number.

87131311313178 is an abundant number, since it is smaller than the sum of its proper divisors (102977658740454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87131311313178 is a wasteful number, since it uses less digits than its factorization.

87131311313178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29797410.

The product of its digits is 254016, while the sum is 48.

The spelling of 87131311313178 in words is "eighty-seven trillion, one hundred thirty-one billion, three hundred eleven million, three hundred thirteen thousand, one hundred seventy-eight".