964273913657 has 4 divisors (see below), whose sum is σ = 1020995908596. Its totient is φ = 907551918720.

The previous prime is 964273913651. The next prime is 964273913677. The reversal of 964273913657 is 756319372469.

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

It can be written as a sum of positive squares in 2 ways, for example, as 569090693161 + 395183220496 = 754381^2 + 628636^2 .

It is a cyclic number.

It is not a de Polignac number, because 964273913657 - 2⁸ = 964273913401 is a prime.

It is a super-2 number, since 2×964273913657² (a number of 25 digits) contains 22 as substring.

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 964273913657.

It is not an unprimeable number, because it can be changed into a prime (964273913651) 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 3 ways as a sum of consecutive naturals, for example, 28360997444 + ... + 28360997477.

It is an arithmetic number, because the mean of its divisors is an integer number (255248977149).

Almost surely, 2^964273913657 is an apocalyptic number.

It is an amenable number.

964273913657 is a deficient number, since it is larger than the sum of its proper divisors (56721994939).

964273913657 is a wasteful number, since it uses less digits than its factorization.

964273913657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56721994938.

The product of its digits is 51438240, while the sum is 62.

The spelling of 964273913657 in words is "nine hundred sixty-four billion, two hundred seventy-three million, nine hundred thirteen thousand, six hundred fifty-seven".