76707678197 has 8 divisors (see below), whose sum is σ = 76777128120. Its totient is φ = 76638260160.

The previous prime is 76707678133. The next prime is 76707678209. The reversal of 76707678197 is 79187670767.

It can be written as a sum of positive squares in 4 ways, for example, as 3206503876 + 73501174321 = 56626^2 + 271111^2 .

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 76707678197 - 2⁶ = 76707678133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76707678497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8103047 + ... + 8112507.

It is an arithmetic number, because the mean of its divisors is an integer number (9597141015).

Almost surely, 2^76707678197 is an apocalyptic number.

It is an amenable number.

76707678197 is a deficient number, since it is larger than the sum of its proper divisors (69449923).

76707678197 is a wasteful number, since it uses less digits than its factorization.

76707678197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15943.

The product of its (nonzero) digits is 43563744, while the sum is 65.

It can be divided in two parts, 7670 and 7678197, that added together give a palindrome (7685867).

The spelling of 76707678197 in words is "seventy-six billion, seven hundred seven million, six hundred seventy-eight thousand, one hundred ninety-seven".