11431878024 has 64 divisors (see below), whose sum is σ = 32744154240. Its totient is φ = 3258086400.

The previous prime is 11431878001. The next prime is 11431878079. The reversal of 11431878024 is 42087813411.

It is a super-2 number, since 2×11431878024² (a number of 21 digits) contains 22 as substring.

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, 17479 + ... + 152214.

It is an arithmetic number, because the mean of its divisors is an integer number (511627410).

Almost surely, 2^11431878024 is an apocalyptic number.

11431878024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11431878024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16372077120).

11431878024 is an abundant number, since it is smaller than the sum of its proper divisors (21312276216).

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

11431878024 is a wasteful number, since it uses less digits than its factorization.

11431878024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170110 (or 170106 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 11431878024 in words is "eleven billion, four hundred thirty-one million, eight hundred seventy-eight thousand, twenty-four".