11586551951 has 6 divisors (see below), whose sum is σ = 12546384840. Its totient is φ = 10695278568.

The previous prime is 11586551947. The next prime is 11586551959. The reversal of 11586551951 is 15915568511.

It is not a de Polignac number, because 11586551951 - 2² = 11586551947 is a prime.

It is a super-2 number, since 2×11586551951² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11586551896 and 11586551905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11586551959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34279571 + ... + 34279908.

It is an arithmetic number, because the mean of its divisors is an integer number (2091064140).

Almost surely, 2^11586551951 is an apocalyptic number.

11586551951 is a deficient number, since it is larger than the sum of its proper divisors (959832889).

11586551951 is an equidigital number, since it uses as much as digits as its factorization.

11586551951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68559505 (or 68559492 counting only the distinct ones).

The product of its digits is 270000, while the sum is 47.

The spelling of 11586551951 in words is "eleven billion, five hundred eighty-six million, five hundred fifty-one thousand, nine hundred fifty-one".