87590865862 has 24 divisors (see below), whose sum is σ = 139072660776. Its totient is φ = 41348916000.

The previous prime is 87590865853. The next prime is 87590865889. The reversal of 87590865862 is 26856809578.

It is a super-3 number, since 3×87590865862³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87590865794 and 87590865803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476964 + ... + 634567.

It is an arithmetic number, because the mean of its divisors is an integer number (5794694199).

Almost surely, 2^87590865862 is an apocalyptic number.

87590865862 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

87590865862 is a deficient number, since it is larger than the sum of its proper divisors (51481794914).

87590865862 is a wasteful number, since it uses less digits than its factorization.

87590865862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111636 (or 1111605 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 64.

The spelling of 87590865862 in words is "eighty-seven billion, five hundred ninety million, eight hundred sixty-five thousand, eight hundred sixty-two".