12642513337 has 8 divisors (see below), whose sum is σ = 12963489480. Its totient is φ = 12325205760.

The previous prime is 12642513319. The next prime is 12642513347. The reversal of 12642513337 is 73331524621.

It can be written as a sum of positive squares in 4 ways, for example, as 3792219561 + 8850293776 = 61581^2 + 94076^2 .

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 12642513337 - 2²⁷ = 12508295609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12642513296 and 12642513305.

It is not an unprimeable number, because it can be changed into a prime (12642513307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910162 + ... + 923947.

It is an arithmetic number, because the mean of its divisors is an integer number (1620436185).

Almost surely, 2^12642513337 is an apocalyptic number.

It is an amenable number.

12642513337 is a deficient number, since it is larger than the sum of its proper divisors (320976143).

12642513337 is a wasteful number, since it uses less digits than its factorization.

12642513337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834283.

The product of its digits is 90720, while the sum is 37.

The spelling of 12642513337 in words is "twelve billion, six hundred forty-two million, five hundred thirteen thousand, three hundred thirty-seven".