76664397476919 has 16 divisors (see below), whose sum is σ = 117595594242560. Its totient is φ = 43518106418400.

The previous prime is 76664397476893. The next prime is 76664397476929. The reversal of 76664397476919 is 91967479346667.

It is not a de Polignac number, because 76664397476919 - 2³⁷ = 76526958523447 is a prime.

It is a super-2 number, since 2×76664397476919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76664397476929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12088359724 + ... + 12088366065.

It is an arithmetic number, because the mean of its divisors is an integer number (7349724640160).

Almost surely, 2^{76664397476919} is an apocalyptic number.

76664397476919 is a deficient number, since it is larger than the sum of its proper divisors (40931196765641).

76664397476919 is a wasteful number, since it uses less digits than its factorization.

76664397476919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24176725950.

The product of its digits is 15554923776, while the sum is 84.

The spelling of 76664397476919 in words is "seventy-six trillion, six hundred sixty-four billion, three hundred ninety-seven million, four hundred seventy-six thousand, nine hundred nineteen".