11916531474 has 16 divisors (see below), whose sum is σ = 23859007680. Its totient is φ = 3967853040.

The previous prime is 11916531467. The next prime is 11916531547. The reversal of 11916531474 is 47413561911.

It is a happy number.

11916531474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11916531474² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1075057 + ... + 1086084.

It is an arithmetic number, because the mean of its divisors is an integer number (1491187980).

Almost surely, 2^11916531474 is an apocalyptic number.

11916531474 is an abundant number, since it is smaller than the sum of its proper divisors (11942476206).

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

11916531474 is a wasteful number, since it uses less digits than its factorization.

11916531474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162065.

The product of its digits is 90720, while the sum is 42.

The spelling of 11916531474 in words is "eleven billion, nine hundred sixteen million, five hundred thirty-one thousand, four hundred seventy-four".