2672621856 has 36 divisors (see below), whose sum is σ = 7600269222. Its totient is φ = 890873856.

The previous prime is 2672621843. The next prime is 2672621869. The reversal of 2672621856 is 6581262762.

2672621856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2672621843) and next prime (2672621869).

It can be written as a sum of positive squares in only one way, i.e., 1978826256 + 693795600 = 44484^2 + 26340^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4639681 + ... + 4640256.

Almost surely, 2^2672621856 is an apocalyptic number.

It is an amenable number.

2672621856 is an abundant number, since it is smaller than the sum of its proper divisors (4927647366).

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

2672621856 is a wasteful number, since it uses less digits than its factorization.

2672621856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9279953 (or 9279942 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 2672621856 is about 51697.4066660988. The cubic root of 2672621856 is about 1387.7540556458.

The spelling of 2672621856 in words is "two billion, six hundred seventy-two million, six hundred twenty-one thousand, eight hundred fifty-six".