2915129868 has 24 divisors (see below), whose sum is σ = 7773679872. Its totient is φ = 832894224.

The previous prime is 2915129863. The next prime is 2915129873. The reversal of 2915129868 is 8689215192.

It is an interprime number because it is at equal distance from previous prime (2915129863) and next prime (2915129873).

It is a self number, because there is not a number n which added to its sum of digits gives 2915129868.

It is not an unprimeable number, because it can be changed into a prime (2915129863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17351880 + ... + 17352047.

It is an arithmetic number, because the mean of its divisors is an integer number (323903328).

Almost surely, 2^2915129868 is an apocalyptic number.

2915129868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2915129868 is an abundant number, since it is smaller than the sum of its proper divisors (4858550004).

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

2915129868 is a wasteful number, since it uses less digits than its factorization.

2915129868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34703941 (or 34703939 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 2915129868 is about 53991.9426210986. The cubic root of 2915129868 is about 1428.5188288843.

The spelling of 2915129868 in words is "two billion, nine hundred fifteen million, one hundred twenty-nine thousand, eight hundred sixty-eight".