11391374892 has 48 divisors (see below), whose sum is σ = 28829842272. Its totient is φ = 3486597120.

The previous prime is 11391374873. The next prime is 11391374927. The reversal of 11391374892 is 29847319311.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672613 + ... + 689340.

It is an arithmetic number, because the mean of its divisors is an integer number (600621714).

Almost surely, 2^11391374892 is an apocalyptic number.

11391374892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11391374892 is an abundant number, since it is smaller than the sum of its proper divisors (17438467380).

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

11391374892 is a wasteful number, since it uses less digits than its factorization.

11391374892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362018 (or 1362016 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

It can be divided in two parts, 113913 and 74892, that added together give a triangular number (188805 = T₆₁₄).

The spelling of 11391374892 in words is "eleven billion, three hundred ninety-one million, three hundred seventy-four thousand, eight hundred ninety-two".