2563511394939 has 32 divisors (see below), whose sum is σ = 3808310529024. Its totient is φ = 1520494510080.

The previous prime is 2563511394907. The next prime is 2563511394989. The reversal of 2563511394939 is 9394931153652.

It is not a de Polignac number, because 2563511394939 - 2⁵ = 2563511394907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2563511394989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32054907 + ... + 32134779.

It is an arithmetic number, because the mean of its divisors is an integer number (119009704032).

Almost surely, 2^{2563511394939} is an apocalyptic number.

2563511394939 is a deficient number, since it is larger than the sum of its proper divisors (1244799134085).

2563511394939 is a wasteful number, since it uses less digits than its factorization.

2563511394939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100627.

The product of its digits is 23619600, while the sum is 60.

The spelling of 2563511394939 in words is "two trillion, five hundred sixty-three billion, five hundred eleven million, three hundred ninety-four thousand, nine hundred thirty-nine".