2650623644 has 12 divisors (see below), whose sum is σ = 4645699464. Its totient is φ = 1323280944.

The previous prime is 2650623641. The next prime is 2650623761. The reversal of 2650623644 is 4463260562.

It is a junction number, because it is equal to n+sod(n) for n = 2650623598 and 2650623607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2650623641) 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, 504782 + ... + 510005.

It is an arithmetic number, because the mean of its divisors is an integer number (387141622).

Almost surely, 2^2650623644 is an apocalyptic number.

It is an amenable number.

2650623644 is a deficient number, since it is larger than the sum of its proper divisors (1995075820).

2650623644 is a wasteful number, since it uses less digits than its factorization.

2650623644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015444 (or 1015442 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 2650623644 is about 51484.2077145992. The cubic root of 2650623644 is about 1383.9360505663.

The spelling of 2650623644 in words is "two billion, six hundred fifty million, six hundred twenty-three thousand, six hundred forty-four".