11922980736 has 128 divisors (see below), whose sum is σ = 33613781760. Its totient is φ = 3731578880.

The previous prime is 11922980689. The next prime is 11922980737. The reversal of 11922980736 is 63708922911.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11922980737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046621 + ... + 3050531.

It is an arithmetic number, because the mean of its divisors is an integer number (262607670).

Almost surely, 2^11922980736 is an apocalyptic number.

11922980736 is a gapful number since it is divisible by the number (16) 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 11922980736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16806890880).

11922980736 is an abundant number, since it is smaller than the sum of its proper divisors (21690801024).

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

11922980736 is a wasteful number, since it uses less digits than its factorization.

11922980736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4400 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 11922980736 in words is "eleven billion, nine hundred twenty-two million, nine hundred eighty thousand, seven hundred thirty-six".