70857073830 has 32 divisors (see below), whose sum is σ = 170133704928. Its totient is φ = 18886694400.

The previous prime is 70857073823. The next prime is 70857073853. The reversal of 70857073830 is 3837075807.

It is a self number, because there is not a number n which added to its sum of digits gives 70857073830.

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, 465091 + ... + 598350.

It is an arithmetic number, because the mean of its divisors is an integer number (5316678279).

Almost surely, 2^70857073830 is an apocalyptic number.

70857073830 is an abundant number, since it is smaller than the sum of its proper divisors (99276631098).

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

70857073830 is a wasteful number, since it uses less digits than its factorization.

70857073830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065672.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 70857073830 in words is "seventy billion, eight hundred fifty-seven million, seventy-three thousand, eight hundred thirty".