2591138750828 has 12 divisors (see below), whose sum is σ = 4534504093392. Its totient is φ = 1295566152720.

The previous prime is 2591138750807. The next prime is 2591138750881. The reversal of 2591138750828 is 8280578311952.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656001 + ... + 3498087.

It is an arithmetic number, because the mean of its divisors is an integer number (377875341116).

Almost surely, 2^{2591138750828} is an apocalyptic number.

It is an amenable number.

2591138750828 is a deficient number, since it is larger than the sum of its proper divisors (1943365342564).

2591138750828 is a wasteful number, since it uses less digits than its factorization.

2591138750828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611352 (or 1611350 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 59.

The spelling of 2591138750828 in words is "two trillion, five hundred ninety-one billion, one hundred thirty-eight million, seven hundred fifty thousand, eight hundred twenty-eight".