11999342592 has 260 divisors, whose sum is σ = 36512529240. Its totient is φ = 3925573632.

The previous prime is 11999342591. The next prime is 11999342599. The reversal of 11999342592 is 29524399911.

11999342592 is a `hidden beast` number, since 1 + 1 + 9 + 9 + 9 + 3 + 42 + 592 = 666.

It is a super-3 number, since 3×11999342592³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11999342591) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19574478 + ... + 19575090.

Almost surely, 2^11999342592 is an apocalyptic number.

11999342592 is a gapful number since it is divisible by the number (12) 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 11999342592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18256264620).

11999342592 is an abundant number, since it is smaller than the sum of its proper divisors (24513186648).

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

11999342592 is an frugal number, since it uses more digits than its factorization.

11999342592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 677 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The spelling of 11999342592 in words is "eleven billion, nine hundred ninety-nine million, three hundred forty-two thousand, five hundred ninety-two".