64426406733 has 24 divisors (see below), whose sum is σ = 100288188000. Its totient is φ = 39619591200.

The previous prime is 64426406719. The next prime is 64426406743. The reversal of 64426406733 is 33760462446.

It is not a de Polignac number, because 64426406733 - 2⁸ = 64426406477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64426406743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19983 + ... + 359516.

It is an arithmetic number, because the mean of its divisors is an integer number (4178674500).

Almost surely, 2^64426406733 is an apocalyptic number.

It is an amenable number.

64426406733 is a deficient number, since it is larger than the sum of its proper divisors (35861781267).

64426406733 is a wasteful number, since it uses less digits than its factorization.

64426406733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380969 (or 380966 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 45.

The spelling of 64426406733 in words is "sixty-four billion, four hundred twenty-six million, four hundred six thousand, seven hundred thirty-three".