64274602231 has 4 divisors (see below), whose sum is σ = 73456688272. Its totient is φ = 55092516192.

The previous prime is 64274602109. The next prime is 64274602261. The reversal of 64274602231 is 13220647246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13220647246 = 2 ⋅6610323623.

It is not a de Polignac number, because 64274602231 - 2⁷ = 64274602103 is a prime.

It is a super-2 number, since 2×64274602231² (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 (64274602261) 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, 4591043010 + ... + 4591043023.

It is an arithmetic number, because the mean of its divisors is an integer number (18364172068).

Almost surely, 2^64274602231 is an apocalyptic number.

64274602231 is a deficient number, since it is larger than the sum of its proper divisors (9182086041).

64274602231 is an equidigital number, since it uses as much as digits as its factorization.

64274602231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9182086040.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 64274602231 in words is "sixty-four billion, two hundred seventy-four million, six hundred two thousand, two hundred thirty-one".