11865099792 has 320 divisors, whose sum is σ = 39837450240. Its totient is φ = 2957340672.

The previous prime is 11865099773. The next prime is 11865099797. The reversal of 11865099792 is 29799056811.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11865099797) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8940633 + ... + 8941959.

It is an arithmetic number, because the mean of its divisors is an integer number (124492032).

Almost surely, 2^11865099792 is an apocalyptic number.

11865099792 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 11865099792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19918725120).

11865099792 is an abundant number, since it is smaller than the sum of its proper divisors (27972350448).

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

11865099792 is a wasteful number, since it uses less digits than its factorization.

11865099792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 57.

The spelling of 11865099792 in words is "eleven billion, eight hundred sixty-five million, ninety-nine thousand, seven hundred ninety-two".