76613451666442 has 16 divisors (see below), whose sum is σ = 115050724213320. Its totient is φ = 38263221255168.

The previous prime is 76613451666413. The next prime is 76613451666457. The reversal of 76613451666442 is 24466615431667.

It can be written as a sum of positive squares in 4 ways, for example, as 41827767218721 + 34785684447721 = 6467439^2 + 5897939^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11214178 + ... + 16702834.

Almost surely, 2^{76613451666442} is an apocalyptic number.

76613451666442 is a deficient number, since it is larger than the sum of its proper divisors (38437272546878).

76613451666442 is a wasteful number, since it uses less digits than its factorization.

76613451666442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496585.

The product of its digits is 104509440, while the sum is 61.

The spelling of 76613451666442 in words is "seventy-six trillion, six hundred thirteen billion, four hundred fifty-one million, six hundred sixty-six thousand, four hundred forty-two".