87655223810 has 32 divisors (see below), whose sum is σ = 196711984512. Its totient is φ = 27321108480.

The previous prime is 87655223809. The next prime is 87655223833. The reversal of 87655223810 is 1832255678.

It is a super-2 number, since 2×87655223810² (a number of 23 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, 56918207 + ... + 56919746.

It is an arithmetic number, because the mean of its divisors is an integer number (6147249516).

Almost surely, 2^87655223810 is an apocalyptic number.

87655223810 is an abundant number, since it is smaller than the sum of its proper divisors (109056760702).

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

87655223810 is a wasteful number, since it uses less digits than its factorization.

87655223810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113837978.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 87655223810 in words is "eighty-seven billion, six hundred fifty-five million, two hundred twenty-three thousand, eight hundred ten".