2598557642 has 8 divisors (see below), whose sum is σ = 3898884132. Its totient is φ = 1298929600.

The previous prime is 2598557623. The next prime is 2598557651. The reversal of 2598557642 is 2467558952.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2210034121 + 388523521 = 47011^2 + 19711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165209 + ... + 180252.

Almost surely, 2^2598557642 is an apocalyptic number.

2598557642 is a deficient number, since it is larger than the sum of its proper divisors (1300326490).

2598557642 is a wasteful number, since it uses less digits than its factorization.

2598557642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349224.

The product of its digits is 6048000, while the sum is 53.

The square root of 2598557642 is about 50976.0496900260. The cubic root of 2598557642 is about 1374.8145454781.

The spelling of 2598557642 in words is "two billion, five hundred ninety-eight million, five hundred fifty-seven thousand, six hundred forty-two".