870803645142840 has 64 divisors (see below), whose sum is σ = 2620920417413760. Its totient is φ = 231457906972800.

The previous prime is 870803645142797. The next prime is 870803645142911. The reversal of 870803645142840 is 48241546308078.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

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, 11818687986 + ... + 11818761665.

It is an arithmetic number, because the mean of its divisors is an integer number (40951881522090).

Almost surely, 2^{870803645142840} is an apocalyptic number.

It is an amenable number.

870803645142840 is an abundant number, since it is smaller than the sum of its proper divisors (1750116772270920).

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

870803645142840 is a wasteful number, since it uses less digits than its factorization.

870803645142840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23637449972 (or 23637449968 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 60.

The spelling of 870803645142840 in words is "eight hundred seventy trillion, eight hundred three billion, six hundred forty-five million, one hundred forty-two thousand, eight hundred forty".