64225786452788 has 24 divisors (see below), whose sum is σ = 112721888025600. Its totient is φ = 32019540426720.

The previous prime is 64225786452761. The next prime is 64225786452857. The reversal of 64225786452788 is 88725468752246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32865653 + ... + 34764963.

It is an arithmetic number, because the mean of its divisors is an integer number (4696745334400).

Almost surely, 2^{64225786452788} is an apocalyptic number.

It is an amenable number.

64225786452788 is a deficient number, since it is larger than the sum of its proper divisors (48496101572812).

64225786452788 is a wasteful number, since it uses less digits than its factorization.

64225786452788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923887 (or 1923885 counting only the distinct ones).

The product of its digits is 2890137600, while the sum is 74.

The spelling of 64225786452788 in words is "sixty-four trillion, two hundred twenty-five billion, seven hundred eighty-six million, four hundred fifty-two thousand, seven hundred eighty-eight".