11587798651 has 12 divisors (see below), whose sum is σ = 13716773056. Its totient is φ = 9724025520.

The previous prime is 11587798633. The next prime is 11587798657. The reversal of 11587798651 is 15689778511.

It is not a de Polignac number, because 11587798651 - 2¹⁵ = 11587765883 is a prime.

It is a super-2 number, since 2×11587798651² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11587798657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3681771 + ... + 3684916.

Almost surely, 2^11587798651 is an apocalyptic number.

11587798651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11587798651 is a deficient number, since it is larger than the sum of its proper divisors (2128974405).

11587798651 is a wasteful number, since it uses less digits than its factorization.

11587798651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366722 (or 7366711 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 58.

The spelling of 11587798651 in words is "eleven billion, five hundred eighty-seven million, seven hundred ninety-eight thousand, six hundred fifty-one".