11937702857 has 4 divisors (see below), whose sum is σ = 12456733440. Its totient is φ = 11418672276.

The previous prime is 11937702853. The next prime is 11937702929. The reversal of 11937702857 is 75820773911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11937702857 - 2² = 11937702853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11937702853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259515257 + ... + 259515302.

It is an arithmetic number, because the mean of its divisors is an integer number (3114183360).

Almost surely, 2^11937702857 is an apocalyptic number.

It is an amenable number.

11937702857 is a deficient number, since it is larger than the sum of its proper divisors (519030583).

11937702857 is an equidigital number, since it uses as much as digits as its factorization.

11937702857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519030582.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 11937702857 in words is "eleven billion, nine hundred thirty-seven million, seven hundred two thousand, eight hundred fifty-seven".