77170256401 has 8 divisors (see below), whose sum is σ = 88274983680. Its totient is φ = 66085630368.

The previous prime is 77170256389. The next prime is 77170256413. The reversal of 77170256401 is 10465207177.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77170256389) and next prime (77170256413).

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 77170256401 - 2¹¹ = 77170254353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77170257401) 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, 5017081 + ... + 5032438.

It is an arithmetic number, because the mean of its divisors is an integer number (11034372960).

Almost surely, 2^77170256401 is an apocalyptic number.

It is an amenable number.

77170256401 is a deficient number, since it is larger than the sum of its proper divisors (11104727279).

77170256401 is a wasteful number, since it uses less digits than its factorization.

77170256401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050623.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 77170256401 in words is "seventy-seven billion, one hundred seventy million, two hundred fifty-six thousand, four hundred one".