2598161779408 has 20 divisors (see below), whose sum is σ = 5421164482468. Its totient is φ = 1199151590400.

The previous prime is 2598161779379. The next prime is 2598161779417. The reversal of 2598161779408 is 8049771618952.

It can be written as a sum of positive squares in 2 ways, for example, as 1733983308864 + 864178470544 = 1316808^2 + 929612^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6245580993 + ... + 6245581408.

Almost surely, 2^{2598161779408} is an apocalyptic number.

It is an amenable number.

2598161779408 is an abundant number, since it is smaller than the sum of its proper divisors (2823002703060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2598161779408 is a wasteful number, since it uses less digits than its factorization.

2598161779408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12491162422 (or 12491162416 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 67.

It can be divided in two parts, 25981617 and 79408, that added together give a square (26061025 = 5105²).

The spelling of 2598161779408 in words is "two trillion, five hundred ninety-eight billion, one hundred sixty-one million, seven hundred seventy-nine thousand, four hundred eight".