64275736407 has 16 divisors (see below), whose sum is σ = 90821000160. Its totient is φ = 40294858752.

The previous prime is 64275736403. The next prime is 64275736439. The reversal of 64275736407 is 70463757246.

It is not a de Polignac number, because 64275736407 - 2² = 64275736403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 64275736407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64275736403) 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, 487732 + ... + 605337.

It is an arithmetic number, because the mean of its divisors is an integer number (5676312510).

Almost surely, 2^64275736407 is an apocalyptic number.

64275736407 is a deficient number, since it is larger than the sum of its proper divisors (26545263753).

64275736407 is a wasteful number, since it uses less digits than its factorization.

64275736407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094242.

The product of its (nonzero) digits is 5927040, while the sum is 51.

The spelling of 64275736407 in words is "sixty-four billion, two hundred seventy-five million, seven hundred thirty-six thousand, four hundred seven".