76819855948451 has 32 divisors (see below), whose sum is σ = 97014862771200. Its totient is φ = 59087235271680.

The previous prime is 76819855948421. The next prime is 76819855948489. The reversal of 76819855948451 is 15484955891867.

It is not a de Polignac number, because 76819855948451 - 2³⁰ = 76818782206627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76819855948421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5387831 + ... + 13515488.

It is an arithmetic number, because the mean of its divisors is an integer number (3031714461600).

Almost surely, 2^{76819855948451} is an apocalyptic number.

76819855948451 is a deficient number, since it is larger than the sum of its proper divisors (20195006822749).

76819855948451 is a wasteful number, since it uses less digits than its factorization.

76819855948451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18904019.

The product of its digits is 3483648000, while the sum is 80.

The spelling of 76819855948451 in words is "seventy-six trillion, eight hundred nineteen billion, eight hundred fifty-five million, nine hundred forty-eight thousand, four hundred fifty-one".