11718621272 has 16 divisors (see below), whose sum is σ = 21976296000. Its totient is φ = 5858275680.

The previous prime is 11718621263. The next prime is 11718621287. The reversal of 11718621272 is 27212681711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80147 + ... + 172802.

It is an arithmetic number, because the mean of its divisors is an integer number (1373518500).

Almost surely, 2^11718621272 is an apocalyptic number.

It is an amenable number.

11718621272 is a deficient number, since it is larger than the sum of its proper divisors (10257674728).

11718621272 is a wasteful number, since it uses less digits than its factorization.

11718621272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258746 (or 258742 counting only the distinct ones).

The product of its digits is 18816, while the sum is 38.

The spelling of 11718621272 in words is "eleven billion, seven hundred eighteen million, six hundred twenty-one thousand, two hundred seventy-two".