2654591864 has 32 divisors (see below), whose sum is σ = 5007977040. Its totient is φ = 1319155200.

The previous prime is 2654591843. The next prime is 2654591869. The reversal of 2654591864 is 4681954562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654591869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273367 + ... + 1275449.

Almost surely, 2^2654591864 is an apocalyptic number.

It is an amenable number.

2654591864 is a deficient number, since it is larger than the sum of its proper divisors (2353385176).

2654591864 is a wasteful number, since it uses less digits than its factorization.

2654591864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991 (or 2987 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The square root of 2654591864 is about 51522.7315269678. The cubic root of 2654591864 is about 1384.6263314431.

The spelling of 2654591864 in words is "two billion, six hundred fifty-four million, five hundred ninety-one thousand, eight hundred sixty-four".