11973344652 has 36 divisors (see below), whose sum is σ = 30353207976. Its totient is φ = 3979608960.

The previous prime is 11973344641. The next prime is 11973344653. The reversal of 11973344652 is 25644337911.

11973344652 is a `hidden beast` number, since 119 + 73 + 3 + 4 + 465 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11973344652² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11973344598 and 11973344607.

It is not an unprimeable number, because it can be changed into a prime (11973344653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466749 + ... + 491732.

It is an arithmetic number, because the mean of its divisors is an integer number (843144666).

Almost surely, 2^11973344652 is an apocalyptic number.

11973344652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11973344652 is an abundant number, since it is smaller than the sum of its proper divisors (18379863324).

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

11973344652 is a wasteful number, since it uses less digits than its factorization.

11973344652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958838 (or 958833 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 11973344652 in words is "eleven billion, nine hundred seventy-three million, three hundred forty-four thousand, six hundred fifty-two".