76991267258 has 8 divisors (see below), whose sum is σ = 122280248052. Its totient is φ = 36231184576.

The previous prime is 76991267233. The next prime is 76991267273. The reversal of 76991267258 is 85276219967.

It can be written as a sum of positive squares in 2 ways, for example, as 63992303089 + 12998964169 = 252967^2 + 114013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 76991267258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132224485 + ... + 1132224552.

Almost surely, 2^76991267258 is an apocalyptic number.

76991267258 is a deficient number, since it is larger than the sum of its proper divisors (45288980794).

76991267258 is a wasteful number, since it uses less digits than its factorization.

76991267258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264449056.

The product of its digits is 22861440, while the sum is 62.

The spelling of 76991267258 in words is "seventy-six billion, nine hundred ninety-one million, two hundred sixty-seven thousand, two hundred fifty-eight".