2620775638904 has 64 divisors (see below), whose sum is σ = 5133226214400. Its totient is φ = 1253595657600.

The previous prime is 2620775638903. The next prime is 2620775638961. The reversal of 2620775638904 is 4098365770262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620775638903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075669 + ... + 3090299.

It is an arithmetic number, because the mean of its divisors is an integer number (80206659600).

Almost surely, 2^{2620775638904} is an apocalyptic number.

It is an amenable number.

2620775638904 is a deficient number, since it is larger than the sum of its proper divisors (2512450575496).

2620775638904 is a wasteful number, since it uses less digits than its factorization.

2620775638904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014844 (or 1014840 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 2620775638904 in words is "two trillion, six hundred twenty billion, seven hundred seventy-five million, six hundred thirty-eight thousand, nine hundred four".