83918857170 has 48 divisors (see below), whose sum is σ = 204761381760. Its totient is φ = 22011474240.

The previous prime is 83918857111. The next prime is 83918857193. The reversal of 83918857170 is 7175881938.

It is a self number, because there is not a number n which added to its sum of digits gives 83918857170.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264250 + ... + 487509.

It is an arithmetic number, because the mean of its divisors is an integer number (4265862120).

Almost surely, 2^83918857170 is an apocalyptic number.

83918857170 is an abundant number, since it is smaller than the sum of its proper divisors (120842524590).

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

83918857170 is a wasteful number, since it uses less digits than its factorization.

83918857170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751891 (or 751830 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 57.

The spelling of 83918857170 in words is "eighty-three billion, nine hundred eighteen million, eight hundred fifty-seven thousand, one hundred seventy".