87087378170 has 24 divisors (see below), whose sum is σ = 169743094236. Its totient is φ = 32155339008.

The previous prime is 87087378143. The next prime is 87087378193. The reversal of 87087378170 is 7187378078.

It can be written as a sum of positive squares in 6 ways, for example, as 10829107969 + 76258270201 = 104063^2 + 276149^2 .

It is a super-2 number, since 2×87087378170² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25763807 + ... + 25767186.

Almost surely, 2^87087378170 is an apocalyptic number.

87087378170 is a deficient number, since it is larger than the sum of its proper divisors (82655716066).

87087378170 is a wasteful number, since it uses less digits than its factorization.

87087378170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51531026 (or 51531013 counting only the distinct ones).

The product of its (nonzero) digits is 3687936, while the sum is 56.

The spelling of 87087378170 in words is "eighty-seven billion, eighty-seven million, three hundred seventy-eight thousand, one hundred seventy".