8158837620 has 48 divisors (see below), whose sum is σ = 22891736448. Its totient is φ = 2171214720.

The previous prime is 8158837619. The next prime is 8158837691. The reversal of 8158837620 is 267388518.

It is a self number, because there is not a number n which added to its sum of digits gives 8158837620.

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, 110391 + ... + 168830.

It is an arithmetic number, because the mean of its divisors is an integer number (476911176).

Almost surely, 2^8158837620 is an apocalyptic number.

It is an amenable number.

8158837620 is an abundant number, since it is smaller than the sum of its proper divisors (14732898828).

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

8158837620 is a wasteful number, since it uses less digits than its factorization.

8158837620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279720 (or 279718 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 8158837620 is about 90326.2842145076. The cubic root of 8158837620 is about 2013.1498199643.

The spelling of 8158837620 in words is "eight billion, one hundred fifty-eight million, eight hundred thirty-seven thousand, six hundred twenty".