11507011623 has 6 divisors (see below), whose sum is σ = 16621239024. Its totient is φ = 7671341076.

The previous prime is 11507011609. The next prime is 11507011643. The reversal of 11507011623 is 32611070511.

It is not a de Polignac number, because 11507011623 - 2²⁰ = 11505963047 is a prime.

It is a super-2 number, since 2×11507011623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11507011643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639278415 + ... + 639278432.

It is an arithmetic number, because the mean of its divisors is an integer number (2770206504).

Almost surely, 2^11507011623 is an apocalyptic number.

11507011623 is a deficient number, since it is larger than the sum of its proper divisors (5114227401).

11507011623 is a wasteful number, since it uses less digits than its factorization.

11507011623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278556853 (or 1278556850 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The spelling of 11507011623 in words is "eleven billion, five hundred seven million, eleven thousand, six hundred twenty-three".