64547095723 has 4 divisors (see below), whose sum is σ = 70415013528. Its totient is φ = 58679177920.

The previous prime is 64547095607. The next prime is 64547095729. The reversal of 64547095723 is 32759074546.

It is a happy number.

64547095723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64547095723 - 2³³ = 55957161131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64547095729) 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, 2933958886 + ... + 2933958907.

It is an arithmetic number, because the mean of its divisors is an integer number (17603753382).

Almost surely, 2^64547095723 is an apocalyptic number.

64547095723 is a deficient number, since it is larger than the sum of its proper divisors (5867917805).

64547095723 is a wasteful number, since it uses less digits than its factorization.

64547095723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867917804.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 64547095723 in words is "sixty-four billion, five hundred forty-seven million, ninety-five thousand, seven hundred twenty-three".