64233136425 has 24 divisors (see below), whose sum is σ = 106278979456. Its totient is φ = 34231803840.

The previous prime is 64233136343. The next prime is 64233136433. The reversal of 64233136425 is 52463133246.

It is not a de Polignac number, because 64233136425 - 2¹⁰ = 64233135401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223174 + ... + 422223.

Almost surely, 2^64233136425 is an apocalyptic number.

It is an amenable number.

64233136425 is a deficient number, since it is larger than the sum of its proper divisors (42045843031).

64233136425 is a wasteful number, since it uses less digits than its factorization.

64233136425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646737 (or 646732 counting only the distinct ones).

The product of its digits is 311040, while the sum is 39.

The spelling of 64233136425 in words is "sixty-four billion, two hundred thirty-three million, one hundred thirty-six thousand, four hundred twenty-five".