64344265451 has 8 divisors (see below), whose sum is σ = 64498945680. Its totient is φ = 64189658368.

The previous prime is 64344265441. The next prime is 64344265463. The reversal of 64344265451 is 15456244346.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64344265451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64344265421) 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, 2009495 + ... + 2041263.

It is an arithmetic number, because the mean of its divisors is an integer number (8062368210).

Almost surely, 2^64344265451 is an apocalyptic number.

64344265451 is a deficient number, since it is larger than the sum of its proper divisors (154680229).

64344265451 is a wasteful number, since it uses less digits than its factorization.

64344265451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36573.

The product of its digits is 1382400, while the sum is 44.

The spelling of 64344265451 in words is "sixty-four billion, three hundred forty-four million, two hundred sixty-five thousand, four hundred fifty-one".