11924492580 has 864 divisors, whose sum is σ = 51815312640. Its totient is φ = 2143272960.

The previous prime is 11924492533. The next prime is 11924492599. The reversal of 11924492580 is 8529442911.

It is a happy number.

11924492580 is a `hidden beast` number, since 1 + 1 + 9 + 24 + 49 + 2 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 52071906 + ... + 52072134.

Almost surely, 2^11924492580 is an apocalyptic number.

11924492580 is a gapful number since it is divisible by the number (10) 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 11924492580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25907656320).

11924492580 is an abundant number, since it is smaller than the sum of its proper divisors (39890820060).

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

11924492580 is a wasteful number, since it uses less digits than its factorization.

11924492580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 11924492580 in words is "eleven billion, nine hundred twenty-four million, four hundred ninety-two thousand, five hundred eighty".