870641458661776 has 80 divisors (see below), whose sum is σ = 1790579493077760. Its totient is φ = 409575365821440.

The previous prime is 870641458661683. The next prime is 870641458661791. The reversal of 870641458661776 is 677166854146078.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 193120015 + ... + 197576878.

It is an arithmetic number, because the mean of its divisors is an integer number (22382243663472).

Almost surely, 2^{870641458661776} is an apocalyptic number.

870641458661776 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

870641458661776 is an abundant number, since it is smaller than the sum of its proper divisors (919938034415984).

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

870641458661776 is a wasteful number, since it uses less digits than its factorization.

870641458661776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390697064 (or 390697058 counting only the distinct ones).

The product of its (nonzero) digits is 2275983360, while the sum is 76.

The spelling of 870641458661776 in words is "eight hundred seventy trillion, six hundred forty-one billion, four hundred fifty-eight million, six hundred sixty-one thousand, seven hundred seventy-six".