64380096657 has 24 divisors (see below), whose sum is σ = 96892286400. Its totient is φ = 41141909088.

The previous prime is 64380096647. The next prime is 64380096719. The reversal of 64380096657 is 75669008346.

It is not a de Polignac number, because 64380096657 - 2¹² = 64380092561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64380096647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 851013 + ... + 923570.

It is an arithmetic number, because the mean of its divisors is an integer number (4037178600).

Almost surely, 2^64380096657 is an apocalyptic number.

It is an amenable number.

64380096657 is a deficient number, since it is larger than the sum of its proper divisors (32512189743).

64380096657 is a wasteful number, since it uses less digits than its factorization.

64380096657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774757 (or 1774754 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 64380096657 in words is "sixty-four billion, three hundred eighty million, ninety-six thousand, six hundred fifty-seven".