64576377407 has 8 divisors (see below), whose sum is σ = 64842238032. Its totient is φ = 64310630400.

The previous prime is 64576377401. The next prime is 64576377457. The reversal of 64576377407 is 70477367546.

64576377407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64576377407 - 2¹² = 64576373311 is a prime.

It is a super-2 number, since 2×64576377407² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64576377401) 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, 1223432 + ... + 1275122.

It is an arithmetic number, because the mean of its divisors is an integer number (8105279754).

Almost surely, 2^64576377407 is an apocalyptic number.

64576377407 is a deficient number, since it is larger than the sum of its proper divisors (265860625).

64576377407 is a wasteful number, since it uses less digits than its factorization.

64576377407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56809.

The product of its (nonzero) digits is 20744640, while the sum is 56.

The spelling of 64576377407 in words is "sixty-four billion, five hundred seventy-six million, three hundred seventy-seven thousand, four hundred seven".