11874686972457 has 4 divisors (see below), whose sum is σ = 15832915963280. Its totient is φ = 7916457981636.

The previous prime is 11874686972431. The next prime is 11874686972461. The reversal of 11874686972457 is 75427968647811.

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 11874686972457 - 2¹¹ = 11874686970409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11874686972497) 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, 1979114495407 + ... + 1979114495412.

It is an arithmetic number, because the mean of its divisors is an integer number (3958228990820).

Almost surely, 2^{11874686972457} is an apocalyptic number.

It is an amenable number.

11874686972457 is a deficient number, since it is larger than the sum of its proper divisors (3958228990823).

11874686972457 is an equidigital number, since it uses as much as digits as its factorization.

11874686972457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958228990822.

The product of its digits is 1137991680, while the sum is 75.

The spelling of 11874686972457 in words is "eleven trillion, eight hundred seventy-four billion, six hundred eighty-six million, nine hundred seventy-two thousand, four hundred fifty-seven".