11955235279631 has 8 divisors (see below), whose sum is σ = 13663382071584. Its totient is φ = 10247152497120.

The previous prime is 11955235279609. The next prime is 11955235279633. The reversal of 11955235279631 is 13697253255911.

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

It is not a de Polignac number, because 11955235279631 - 2⁶ = 11955235279567 is a prime.

It is a super-2 number, since 2×11955235279631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11955235279633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15601460 + ... + 16349801.

It is an arithmetic number, because the mean of its divisors is an integer number (1707922758948).

Almost surely, 2^{11955235279631} is an apocalyptic number.

11955235279631 is a deficient number, since it is larger than the sum of its proper divisors (1708146791953).

11955235279631 is an equidigital number, since it uses as much as digits as its factorization.

11955235279631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32004721.

The product of its digits is 15309000, while the sum is 59.

The spelling of 11955235279631 in words is "eleven trillion, nine hundred fifty-five billion, two hundred thirty-five million, two hundred seventy-nine thousand, six hundred thirty-one".