80677695773957 has 8 divisors (see below), whose sum is σ = 82876665209112. Its totient is φ = 78479699558400.

The previous prime is 80677695773891. The next prime is 80677695774043. The reversal of 80677695773957 is 75937759677608.

It can be written as a sum of positive squares in 4 ways, for example, as 14192165028001 + 66485530745956 = 3767249^2 + 8153866^2 .

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 80677695773957 - 2¹⁸ = 80677695511813 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 (80677695773057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243136844 + ... + 243468437.

It is an arithmetic number, because the mean of its divisors is an integer number (10359583151139).

Almost surely, 2^{80677695773957} is an apocalyptic number.

It is an amenable number.

80677695773957 is a deficient number, since it is larger than the sum of its proper divisors (2198969435155).

80677695773957 is a wasteful number, since it uses less digits than its factorization.

80677695773957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486609799.

The product of its (nonzero) digits is 29405527200, while the sum is 86.

The spelling of 80677695773957 in words is "eighty trillion, six hundred seventy-seven billion, six hundred ninety-five million, seven hundred seventy-three thousand, nine hundred fifty-seven".