2154678276 has 24 divisors (see below), whose sum is σ = 5163464320. Its totient is φ = 698814432.

The previous prime is 2154678263. The next prime is 2154678283. The reversal of 2154678276 is 6728764512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2425996 + ... + 2426883.

Almost surely, 2^2154678276 is an apocalyptic number.

It is an amenable number.

2154678276 is an abundant number, since it is smaller than the sum of its proper divisors (3008786044).

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

2154678276 is a wasteful number, since it uses less digits than its factorization.

2154678276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852923 (or 4852921 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 2154678276 is about 46418.5122122629. The cubic root of 2154678276 is about 1291.5983384977.

The spelling of 2154678276 in words is "two billion, one hundred fifty-four million, six hundred seventy-eight thousand, two hundred seventy-six".