761664332623423 has 4 divisors (see below), whose sum is σ = 764263869595128. Its totient is φ = 759064795651720.

The previous prime is 761664332623387. The next prime is 761664332623463. The reversal of 761664332623423 is 324326233466167.

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

It is a cyclic number.

It is not a de Polignac number, because 761664332623423 - 2¹⁷ = 761664332492351 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 (761664332623463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1299768485413 + ... + 1299768485998.

It is an arithmetic number, because the mean of its divisors is an integer number (191065967398782).

Almost surely, 2^{761664332623423} is an apocalyptic number.

761664332623423 is a deficient number, since it is larger than the sum of its proper divisors (2599536971705).

761664332623423 is a wasteful number, since it uses less digits than its factorization.

761664332623423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599536971704.

The product of its digits is 94058496, while the sum is 58.

The spelling of 761664332623423 in words is "seven hundred sixty-one trillion, six hundred sixty-four billion, three hundred thirty-two million, six hundred twenty-three thousand, four hundred twenty-three".