76431594653 has 4 divisors (see below), whose sum is σ = 79754707488. Its totient is φ = 73108481820.

The previous prime is 76431594599. The next prime is 76431594661. The reversal of 76431594653 is 35649513467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76431594653 is a prime.

It is a super-2 number, since 2×76431594653² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76431594595 and 76431594604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76431594853) 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, 1661556383 + ... + 1661556428.

It is an arithmetic number, because the mean of its divisors is an integer number (19938676872).

Almost surely, 2^76431594653 is an apocalyptic number.

It is an amenable number.

76431594653 is a deficient number, since it is larger than the sum of its proper divisors (3323112835).

76431594653 is a wasteful number, since it uses less digits than its factorization.

76431594653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323112834.

The product of its digits is 8164800, while the sum is 53.

The spelling of 76431594653 in words is "seventy-six billion, four hundred thirty-one million, five hundred ninety-four thousand, six hundred fifty-three".