64464452769 has 8 divisors (see below), whose sum is σ = 87163204032. Its totient is φ = 42371001680.

The previous prime is 64464452713. The next prime is 64464452827. The reversal of 64464452769 is 96725446446.

It is a happy number.

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 64464452769 - 2⁷ = 64464452641 is a prime.

It is a super-2 number, since 2×64464452769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64464352769) 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, 151324794 + ... + 151325219.

It is an arithmetic number, because the mean of its divisors is an integer number (10895400504).

Almost surely, 2^64464452769 is an apocalyptic number.

It is an amenable number.

64464452769 is a deficient number, since it is larger than the sum of its proper divisors (22698751263).

64464452769 is a wasteful number, since it uses less digits than its factorization.

64464452769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302650087.

The product of its digits is 34836480, while the sum is 57.

The spelling of 64464452769 in words is "sixty-four billion, four hundred sixty-four million, four hundred fifty-two thousand, seven hundred sixty-nine".