64140251404 has 12 divisors (see below), whose sum is σ = 112247244928. Its totient is φ = 32069610000.

The previous prime is 64140251401. The next prime is 64140251411. The reversal of 64140251404 is 40415204146.

64140251404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64140251404² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64140251401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342229 + ... + 495379.

Almost surely, 2^64140251404 is an apocalyptic number.

It is an amenable number.

64140251404 is a deficient number, since it is larger than the sum of its proper divisors (48106993524).

64140251404 is a wasteful number, since it uses less digits than its factorization.

64140251404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257856 (or 257854 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 64140251404 in words is "sixty-four billion, one hundred forty million, two hundred fifty-one thousand, four hundred four".