870494644902 has 32 divisors (see below), whose sum is σ = 1743779819520. Its totient is φ = 289700016320.

The previous prime is 870494644889. The next prime is 870494644979. The reversal of 870494644902 is 209446494078.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16955323 + ... + 17006585.

It is an arithmetic number, because the mean of its divisors is an integer number (54493119360).

Almost surely, 2^870494644902 is an apocalyptic number.

870494644902 is an abundant number, since it is smaller than the sum of its proper divisors (873285174618).

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

870494644902 is a wasteful number, since it uses less digits than its factorization.

870494644902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55748.

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 870494644902 in words is "eight hundred seventy billion, four hundred ninety-four million, six hundred forty-four thousand, nine hundred two".