2598889156 has 6 divisors (see below), whose sum is σ = 4548056030. Its totient is φ = 1299444576.

The previous prime is 2598889151. The next prime is 2598889157. The reversal of 2598889156 is 6519888952.

It can be written as a sum of positive squares in only one way, i.e., 1729229056 + 869660100 = 41584^2 + 29490^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2598889094 and 2598889103.

It is not an unprimeable number, because it can be changed into a prime (2598889151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324861141 + ... + 324861148.

Almost surely, 2^2598889156 is an apocalyptic number.

It is an amenable number.

2598889156 is a deficient number, since it is larger than the sum of its proper divisors (1949166874).

2598889156 is a wasteful number, since it uses less digits than its factorization.

2598889156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649722293 (or 649722291 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 61.

The square root of 2598889156 is about 50979.3012506056. The cubic root of 2598889156 is about 1374.8730075112.

The spelling of 2598889156 in words is "two billion, five hundred ninety-eight million, eight hundred eighty-nine thousand, one hundred fifty-six".