11773232540 has 24 divisors (see below), whose sum is σ = 25036751040. Its totient is φ = 4649681088.

The previous prime is 11773232459. The next prime is 11773232699. The reversal of 11773232540 is 4523237711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11773232540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3724127 + ... + 3727286.

It is an arithmetic number, because the mean of its divisors is an integer number (1043197960).

Almost surely, 2^11773232540 is an apocalyptic number.

11773232540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11773232540 is an abundant number, since it is smaller than the sum of its proper divisors (13263518500).

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

11773232540 is a wasteful number, since it uses less digits than its factorization.

11773232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7451501 (or 7451499 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 11773232540 in words is "eleven billion, seven hundred seventy-three million, two hundred thirty-two thousand, five hundred forty".