12369541957 has 4 divisors (see below), whose sum is σ = 12372646860. Its totient is φ = 12366437056.

The previous prime is 12369541903. The next prime is 12369541967. The reversal of 12369541957 is 75914596321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7669205476 + 4700336481 = 87574^2 + 68559^2 .

It is a cyclic number.

It is not a de Polignac number, because 12369541957 - 2¹⁵ = 12369509189 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 (12369541967) 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, 1546468 + ... + 1554445.

It is an arithmetic number, because the mean of its divisors is an integer number (3093161715).

Almost surely, 2^12369541957 is an apocalyptic number.

It is an amenable number.

12369541957 is a deficient number, since it is larger than the sum of its proper divisors (3104903).

12369541957 is an equidigital number, since it uses as much as digits as its factorization.

12369541957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104902.

The product of its digits is 2041200, while the sum is 52.

The spelling of 12369541957 in words is "twelve billion, three hundred sixty-nine million, five hundred forty-one thousand, nine hundred fifty-seven".