11917394037 has 6 divisors (see below), whose sum is σ = 17214013622. Its totient is φ = 7944929352.

The previous prime is 11917394017. The next prime is 11917394059. The reversal of 11917394037 is 73049371911.

It can be written as a sum of positive squares in only one way, i.e., 7298968356 + 4618425681 = 85434^2 + 67959^2 .

It is not a de Polignac number, because 11917394037 - 2²⁰ = 11916345461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11917393983 and 11917394001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11917394017) 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, 662077438 + ... + 662077455.

Almost surely, 2^11917394037 is an apocalyptic number.

It is an amenable number.

11917394037 is a deficient number, since it is larger than the sum of its proper divisors (5296619585).

11917394037 is a wasteful number, since it uses less digits than its factorization.

11917394037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324154899 (or 1324154896 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The spelling of 11917394037 in words is "eleven billion, nine hundred seventeen million, three hundred ninety-four thousand, thirty-seven".