11207728631 has 8 divisors (see below), whose sum is σ = 12228220944. Its totient is φ = 10187504320.

The previous prime is 11207728579. The next prime is 11207728661. The reversal of 11207728631 is 13682770211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11207728631 is a prime.

It is a super-2 number, since 2×11207728631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11207728661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26075 + ... + 151971.

It is an arithmetic number, because the mean of its divisors is an integer number (1528527618).

Almost surely, 2^11207728631 is an apocalyptic number.

11207728631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11207728631 is a deficient number, since it is larger than the sum of its proper divisors (1020492313).

11207728631 is a wasteful number, since it uses less digits than its factorization.

11207728631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134001.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 11207728631 in words is "eleven billion, two hundred seven million, seven hundred twenty-eight thousand, six hundred thirty-one".