64232545613 has 2 divisors, whose sum is σ = 64232545614. Its totient is φ = 64232545612.

The previous prime is 64232545543. The next prime is 64232545667. The reversal of 64232545613 is 31654523246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56756868169 + 7475677444 = 238237^2 + 86462^2 .

It is a cyclic number.

It is not a de Polignac number, because 64232545613 - 2²² = 64228351309 is a prime.

It is a super-2 number, since 2×64232545613² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64232545813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32116272806 + 32116272807.

It is an arithmetic number, because the mean of its divisors is an integer number (32116272807).

Almost surely, 2^64232545613 is an apocalyptic number.

It is an amenable number.

64232545613 is a deficient number, since it is larger than the sum of its proper divisors (1).

64232545613 is an equidigital number, since it uses as much as digits as its factorization.

64232545613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 41.

The spelling of 64232545613 in words is "sixty-four billion, two hundred thirty-two million, five hundred forty-five thousand, six hundred thirteen".