76716720047 has 8 divisors (see below), whose sum is σ = 83700981120. Its totient is φ = 69734127960.

The previous prime is 76716720043. The next prime is 76716720103. The reversal of 76716720047 is 74002761767.

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

It is a cyclic number.

It is not a de Polignac number, because 76716720047 - 2² = 76716720043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76716719983 and 76716720010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76716720043) 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 7 ways as a sum of consecutive naturals, for example, 320147 + ... + 505892.

It is an arithmetic number, because the mean of its divisors is an integer number (10462622640).

Almost surely, 2^76716720047 is an apocalyptic number.

76716720047 is a deficient number, since it is larger than the sum of its proper divisors (6984261073).

76716720047 is a wasteful number, since it uses less digits than its factorization.

76716720047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834493.

The product of its (nonzero) digits is 691488, while the sum is 47.

The spelling of 76716720047 in words is "seventy-six billion, seven hundred sixteen million, seven hundred twenty thousand, forty-seven".