7664690964593 has 32 divisors (see below), whose sum is σ = 8378134732800. Its totient is φ = 6969763100160.

The previous prime is 7664690964551. The next prime is 7664690964599. The reversal of 7664690964593 is 3954690964667.

It is a cyclic number.

It is not a de Polignac number, because 7664690964593 - 2⁶ = 7664690964529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7664690964593.

It is not an unprimeable number, because it can be changed into a prime (7664690964599) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214493908 + ... + 1214500218.

It is an arithmetic number, because the mean of its divisors is an integer number (261816710400).

Almost surely, 2^{7664690964593} is an apocalyptic number.

It is an amenable number.

7664690964593 is a deficient number, since it is larger than the sum of its proper divisors (713443768207).

7664690964593 is a wasteful number, since it uses less digits than its factorization.

7664690964593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11537.

The product of its (nonzero) digits is 1587237120, while the sum is 74.

Adding to 7664690964593 its sum of digits (74), we get a palindrome (7664690964667).

The spelling of 7664690964593 in words is "seven trillion, six hundred sixty-four billion, six hundred ninety million, nine hundred sixty-four thousand, five hundred ninety-three".