2506912644 has 12 divisors (see below), whose sum is σ = 5849462864. Its totient is φ = 835637544.

The previous prime is 2506912643. The next prime is 2506912657. The reversal of 2506912644 is 4462196052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2506912644² = 12569222009294141472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2506912643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104454682 + ... + 104454705.

Almost surely, 2^2506912644 is an apocalyptic number.

It is an amenable number.

2506912644 is an abundant number, since it is smaller than the sum of its proper divisors (3342550220).

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

2506912644 is a wasteful number, since it uses less digits than its factorization.

2506912644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208909394 (or 208909392 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2506912644 is about 50069.0787213026. The cubic root of 2506912644 is about 1358.4585772866.

The spelling of 2506912644 in words is "two billion, five hundred six million, nine hundred twelve thousand, six hundred forty-four".