64180959389 has 16 divisors (see below), whose sum is σ = 69729484800. Its totient is φ = 58880259504.

The previous prime is 64180959329. The next prime is 64180959407. The reversal of 64180959389 is 98395908146.

It is a cyclic number.

It is not a de Polignac number, because 64180959389 - 2³² = 59885992093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64180959319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352157 + ... + 502370.

It is an arithmetic number, because the mean of its divisors is an integer number (4358092800).

Almost surely, 2^64180959389 is an apocalyptic number.

It is an amenable number.

64180959389 is a deficient number, since it is larger than the sum of its proper divisors (5548525411).

64180959389 is a wasteful number, since it uses less digits than its factorization.

64180959389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854672.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 64180959389 in words is "sixty-four billion, one hundred eighty million, nine hundred fifty-nine thousand, three hundred eighty-nine".