64276772245 has 16 divisors (see below), whose sum is σ = 88158833280. Its totient is φ = 44071585344.

The previous prime is 64276772237. The next prime is 64276772327. The reversal of 64276772245 is 54227767246.

It is a cyclic number.

It is not a de Polignac number, because 64276772245 - 2³ = 64276772237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64276772192 and 64276772201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350211 + ... + 501199.

It is an arithmetic number, because the mean of its divisors is an integer number (5509927080).

Almost surely, 2^64276772245 is an apocalyptic number.

It is an amenable number.

64276772245 is a deficient number, since it is larger than the sum of its proper divisors (23882061035).

64276772245 is a wasteful number, since it uses less digits than its factorization.

64276772245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163164.

The product of its digits is 7902720, while the sum is 52.

The spelling of 64276772245 in words is "sixty-four billion, two hundred seventy-six million, seven hundred seventy-two thousand, two hundred forty-five".