64732602253 has 4 divisors (see below), whose sum is σ = 70617384288. Its totient is φ = 58847820220.

The previous prime is 64732602247. The next prime is 64732602299. The reversal of 64732602253 is 35220623746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64732602253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64732702253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942391001 + ... + 2942391022.

It is an arithmetic number, because the mean of its divisors is an integer number (17654346072).

Almost surely, 2^64732602253 is an apocalyptic number.

It is an amenable number.

64732602253 is a deficient number, since it is larger than the sum of its proper divisors (5884782035).

64732602253 is a wasteful number, since it uses less digits than its factorization.

64732602253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884782034.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 64732602253 in words is "sixty-four billion, seven hundred thirty-two million, six hundred two thousand, two hundred fifty-three".