2088915864 has 48 divisors (see below), whose sum is σ = 6074911800. Its totient is φ = 596832768.

The previous prime is 2088915823. The next prime is 2088915887. The reversal of 2088915864 is 4685198802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886969 + ... + 889320.

Almost surely, 2^2088915864 is an apocalyptic number.

2088915864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2088915864 is an abundant number, since it is smaller than the sum of its proper divisors (3985995936).

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

2088915864 is a wasteful number, since it uses less digits than its factorization.

2088915864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776312 (or 1776301 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The square root of 2088915864 is about 45704.6591060474. The cubic root of 2088915864 is about 1278.3221554566.

The spelling of 2088915864 in words is "two billion, eighty-eight million, nine hundred fifteen thousand, eight hundred sixty-four".