11611621452 has 24 divisors (see below), whose sum is σ = 28687535856. Its totient is φ = 3642861568.

The previous prime is 11611621429. The next prime is 11611621471. The reversal of 11611621452 is 25412611611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28459653 + ... + 28460060.

It is an arithmetic number, because the mean of its divisors is an integer number (1195313994).

Almost surely, 2^11611621452 is an apocalyptic number.

11611621452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11611621452 is an abundant number, since it is smaller than the sum of its proper divisors (17075914404).

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

11611621452 is a wasteful number, since it uses less digits than its factorization.

11611621452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56919737 (or 56919735 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The spelling of 11611621452 in words is "eleven billion, six hundred eleven million, six hundred twenty-one thousand, four hundred fifty-two".