64424760395 has 4 divisors (see below), whose sum is σ = 77309712480. Its totient is φ = 51539808312.

The previous prime is 64424760391. The next prime is 64424760403. The reversal of 64424760395 is 59306742446.

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

It is a cyclic number.

It is not a de Polignac number, because 64424760395 - 2² = 64424760391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64424760391) 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, 6442476035 + ... + 6442476044.

It is an arithmetic number, because the mean of its divisors is an integer number (19327428120).

Almost surely, 2^64424760395 is an apocalyptic number.

64424760395 is a deficient number, since it is larger than the sum of its proper divisors (12884952085).

64424760395 is a wasteful number, since it uses less digits than its factorization.

64424760395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12884952084.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 64424760395 in words is "sixty-four billion, four hundred twenty-four million, seven hundred sixty thousand, three hundred ninety-five".