11823772457 has 8 divisors (see below), whose sum is σ = 13741915200. Its totient is φ = 9962887824.

The previous prime is 11823772453. The next prime is 11823772463. The reversal of 11823772457 is 75427732811.

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

It is a cyclic number.

It is not a de Polignac number, because 11823772457 - 2² = 11823772453 is a prime.

It is a super-2 number, since 2×11823772457² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11823772453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14314082 + ... + 14314907.

It is an arithmetic number, because the mean of its divisors is an integer number (1717739400).

Almost surely, 2^11823772457 is an apocalyptic number.

It is an amenable number.

11823772457 is a deficient number, since it is larger than the sum of its proper divisors (1918142743).

11823772457 is an equidigital number, since it uses as much as digits as its factorization.

11823772457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28629055.

The product of its digits is 658560, while the sum is 47.

The spelling of 11823772457 in words is "eleven billion, eight hundred twenty-three million, seven hundred seventy-two thousand, four hundred fifty-seven".