64740570751 has 8 divisors (see below), whose sum is σ = 66329702208. Its totient is φ = 63151920000.

The previous prime is 64740570749. The next prime is 64740570781. The reversal of 64740570751 is 15707504746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64740570751 - 2¹ = 64740570749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64740570701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160426 + ... + 393976.

It is an arithmetic number, because the mean of its divisors is an integer number (8291212776).

Almost surely, 2^64740570751 is an apocalyptic number.

64740570751 is a deficient number, since it is larger than the sum of its proper divisors (1589131457).

64740570751 is a wasteful number, since it uses less digits than its factorization.

64740570751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240353.

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 64740570751 in words is "sixty-four billion, seven hundred forty million, five hundred seventy thousand, seven hundred fifty-one".