11958989862 has 32 divisors (see below), whose sum is σ = 24292483200. Its totient is φ = 3923998848.

The previous prime is 11958989851. The next prime is 11958989879. The reversal of 11958989862 is 26898985911.

11958989862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11958989793 and 11958989802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588589 + ... + 608567.

It is an arithmetic number, because the mean of its divisors is an integer number (759140100).

Almost surely, 2^11958989862 is an apocalyptic number.

11958989862 is an abundant number, since it is smaller than the sum of its proper divisors (12333493338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11958989862 is a wasteful number, since it uses less digits than its factorization.

11958989862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21540.

The product of its digits is 22394880, while the sum is 66.

It can be divided in two parts, 11958 and 989862, that added together give a triangular number (1001820 = T₁₄₁₅).

The spelling of 11958989862 in words is "eleven billion, nine hundred fifty-eight million, nine hundred eighty-nine thousand, eight hundred sixty-two".