12347426961 has 24 divisors (see below), whose sum is σ = 18938803104. Its totient is φ = 7725045120.

The previous prime is 12347426951. The next prime is 12347426969. The reversal of 12347426961 is 16962474321.

12347426961 is a `hidden beast` number, since 123 + 47 + 426 + 9 + 61 = 666.

It is not a de Polignac number, because 12347426961 - 2⁵ = 12347426929 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12347426969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63195 + ... + 169376.

It is an arithmetic number, because the mean of its divisors is an integer number (789116796).

Almost surely, 2^12347426961 is an apocalyptic number.

It is an amenable number.

12347426961 is a deficient number, since it is larger than the sum of its proper divisors (6591376143).

12347426961 is a wasteful number, since it uses less digits than its factorization.

12347426961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232941 (or 232938 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 12347426961 in words is "twelve billion, three hundred forty-seven million, four hundred twenty-six thousand, nine hundred sixty-one".