12626254720961 has 16 divisors (see below), whose sum is σ = 14579666747520. Its totient is φ = 10710749266560.

The previous prime is 12626254720957. The next prime is 12626254720999. The reversal of 12626254720961 is 16902745262621.

It is not a de Polignac number, because 12626254720961 - 2² = 12626254720957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12626254720931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20159420 + ... + 20776301.

It is an arithmetic number, because the mean of its divisors is an integer number (911229171720).

Almost surely, 2^{12626254720961} is an apocalyptic number.

It is an amenable number.

12626254720961 is a deficient number, since it is larger than the sum of its proper divisors (1953412026559).

12626254720961 is a wasteful number, since it uses less digits than its factorization.

12626254720961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40936184.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 12626254720961 in words is "twelve trillion, six hundred twenty-six billion, two hundred fifty-four million, seven hundred twenty thousand, nine hundred sixty-one".