2621625660731 has 16 divisors (see below), whose sum is σ = 3373956446208. Its totient is φ = 1976927601600.

The previous prime is 2621625660701. The next prime is 2621625660733. The reversal of 2621625660731 is 1370665261262.

It is not a de Polignac number, because 2621625660731 - 2²² = 2621621466427 is a prime.

It is a super-2 number, since 2×2621625660731² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2621625660733) 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, 549144170 + ... + 549148943.

It is an arithmetic number, because the mean of its divisors is an integer number (210872277888).

Almost surely, 2^{2621625660731} is an apocalyptic number.

2621625660731 is a deficient number, since it is larger than the sum of its proper divisors (752330785477).

2621625660731 is a wasteful number, since it uses less digits than its factorization.

2621625660731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098293162.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 2621625660731 in words is "two trillion, six hundred twenty-one billion, six hundred twenty-five million, six hundred sixty thousand, seven hundred thirty-one".