64765954189 has 8 divisors (see below), whose sum is σ = 68262899040. Its totient is φ = 61277830416.

The previous prime is 64765954129. The next prime is 64765954213. The reversal of 64765954189 is 98145956746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64765954189 - 2³⁵ = 30406215821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64765954189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64765954129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190187 + ... + 2219560.

It is an arithmetic number, because the mean of its divisors is an integer number (8532862380).

Almost surely, 2^64765954189 is an apocalyptic number.

It is an amenable number.

64765954189 is a deficient number, since it is larger than the sum of its proper divisors (3496944851).

64765954189 is a wasteful number, since it uses less digits than its factorization.

64765954189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410539.

The product of its digits is 65318400, while the sum is 64.

The spelling of 64765954189 in words is "sixty-four billion, seven hundred sixty-five million, nine hundred fifty-four thousand, one hundred eighty-nine".