64426012300561 has 16 divisors (see below), whose sum is σ = 67042723461120. Its totient is φ = 61860173029200.

The previous prime is 64426012300549. The next prime is 64426012300577. The reversal of 64426012300561 is 16500321062446.

It is a cyclic number.

It is not a de Polignac number, because 64426012300561 - 2¹⁷ = 64426012169489 is a prime.

It is a super-2 number, since 2×64426012300561² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64426012300261) 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, 196075336 + ... + 196403638.

It is an arithmetic number, because the mean of its divisors is an integer number (4190170216320).

Almost surely, 2^{64426012300561} is an apocalyptic number.

It is an amenable number.

64426012300561 is a deficient number, since it is larger than the sum of its proper divisors (2616711160559).

64426012300561 is a wasteful number, since it uses less digits than its factorization.

64426012300561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405756.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 64426012300561 in words is "sixty-four trillion, four hundred twenty-six billion, twelve million, three hundred thousand, five hundred sixty-one".