64625927083 has 4 divisors (see below), whose sum is σ = 64758629680. Its totient is φ = 64493224488.

The previous prime is 64625927029. The next prime is 64625927099. The reversal of 64625927083 is 38072952646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38072952646 = 2 ⋅19036476323.

It is a cyclic number.

It is not a de Polignac number, because 64625927083 - 2²¹ = 64623829931 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 64625927083.

It is not an unprimeable number, because it can be changed into a prime (64625927983) 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, 66350568 + ... + 66351541.

It is an arithmetic number, because the mean of its divisors is an integer number (16189657420).

Almost surely, 2^64625927083 is an apocalyptic number.

64625927083 is a deficient number, since it is larger than the sum of its proper divisors (132702597).

64625927083 is a wasteful number, since it uses less digits than its factorization.

64625927083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132702596.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 64625927083 in words is "sixty-four billion, six hundred twenty-five million, nine hundred twenty-seven thousand, eighty-three".