64274748723 has 8 divisors (see below), whose sum is σ = 95221850000. Its totient is φ = 42849832464.

The previous prime is 64274748697. The next prime is 64274748731. The reversal of 64274748723 is 32784747246.

It is not a de Polignac number, because 64274748723 - 2⁵ = 64274748691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64274748723.

It is not an unprimeable number, because it can be changed into a prime (64274748023) 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, 1190273098 + ... + 1190273151.

It is an arithmetic number, because the mean of its divisors is an integer number (11902731250).

Almost surely, 2^64274748723 is an apocalyptic number.

64274748723 is a deficient number, since it is larger than the sum of its proper divisors (30947101277).

64274748723 is a wasteful number, since it uses less digits than its factorization.

64274748723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380546258 (or 2380546252 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 54.

The spelling of 64274748723 in words is "sixty-four billion, two hundred seventy-four million, seven hundred forty-eight thousand, seven hundred twenty-three".