64324562437 has 2 divisors, whose sum is σ = 64324562438. Its totient is φ = 64324562436.

The previous prime is 64324562431. The next prime is 64324562501. The reversal of 64324562437 is 73426542346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63571553956 + 753008481 = 252134^2 + 27441^2 .

It is a cyclic number.

It is not a de Polignac number, because 64324562437 - 2³⁵ = 29964824069 is a prime.

It is a super-2 number, since 2×64324562437² (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 (64324562431) 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 as a sum of consecutive naturals, namely, 32162281218 + 32162281219.

It is an arithmetic number, because the mean of its divisors is an integer number (32162281219).

Almost surely, 2^64324562437 is an apocalyptic number.

It is an amenable number.

64324562437 is a deficient number, since it is larger than the sum of its proper divisors (1).

64324562437 is an equidigital number, since it uses as much as digits as its factorization.

64324562437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 46.

The spelling of 64324562437 in words is "sixty-four billion, three hundred twenty-four million, five hundred sixty-two thousand, four hundred thirty-seven".