11939252277 has 4 divisors (see below), whose sum is σ = 15919003040. Its totient is φ = 7959501516.

The previous prime is 11939252261. The next prime is 11939252341. The reversal of 11939252277 is 77225293911.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77225293911 = 3 ⋅25741764637.

It is not a de Polignac number, because 11939252277 - 2⁴ = 11939252261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939252477) 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, 1989875377 + ... + 1989875382.

It is an arithmetic number, because the mean of its divisors is an integer number (3979750760).

Almost surely, 2^11939252277 is an apocalyptic number.

It is an amenable number.

11939252277 is a deficient number, since it is larger than the sum of its proper divisors (3979750763).

11939252277 is an equidigital number, since it uses as much as digits as its factorization.

11939252277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979750762.

The product of its digits is 476280, while the sum is 48.

The spelling of 11939252277 in words is "eleven billion, nine hundred thirty-nine million, two hundred fifty-two thousand, two hundred seventy-seven".