64025384649 has 32 divisors (see below), whose sum is σ = 92645130240. Its totient is φ = 39180701952.

The previous prime is 64025384629. The next prime is 64025384677. The reversal of 64025384649 is 94648352046.

It is not a de Polignac number, because 64025384649 - 2⁸ = 64025384393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (64025384629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298372 + ... + 465914.

It is an arithmetic number, because the mean of its divisors is an integer number (2895160320).

Almost surely, 2^64025384649 is an apocalyptic number.

It is an amenable number.

64025384649 is a deficient number, since it is larger than the sum of its proper divisors (28619745591).

64025384649 is a wasteful number, since it uses less digits than its factorization.

64025384649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167749.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 64025384649 in words is "sixty-four billion, twenty-five million, three hundred eighty-four thousand, six hundred forty-nine".