11974948561959 has 8 divisors (see below), whose sum is σ = 16481649633792. Its totient is φ = 7725773265720.

The previous prime is 11974948561931. The next prime is 11974948562041. The reversal of 11974948561959 is 95916584947911.

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

It is not a de Polignac number, because 11974948561959 - 2²³ = 11974940173351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11974948561259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64381443789 + ... + 64381443974.

It is an arithmetic number, because the mean of its divisors is an integer number (2060206204224).

Almost surely, 2^{11974948561959} is an apocalyptic number.

11974948561959 is a deficient number, since it is larger than the sum of its proper divisors (4506701071833).

11974948561959 is a wasteful number, since it uses less digits than its factorization.

11974948561959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128762887797.

The product of its digits is 881798400, while the sum is 78.

The spelling of 11974948561959 in words is "eleven trillion, nine hundred seventy-four billion, nine hundred forty-eight million, five hundred sixty-one thousand, nine hundred fifty-nine".