77568580137 has 8 divisors (see below), whose sum is σ = 103604021536. Its totient is φ = 51622762752.

The previous prime is 77568580109. The next prime is 77568580157. The reversal of 77568580137 is 73108586577.

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

It is not a de Polignac number, because 77568580137 - 2²³ = 77560191529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77568580157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22403983 + ... + 22407444.

It is an arithmetic number, because the mean of its divisors is an integer number (12950502692).

Almost surely, 2^77568580137 is an apocalyptic number.

It is an amenable number.

77568580137 is a deficient number, since it is larger than the sum of its proper divisors (26035441399).

77568580137 is a wasteful number, since it uses less digits than its factorization.

77568580137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44812007.

The product of its (nonzero) digits is 9878400, while the sum is 57.

The spelling of 77568580137 in words is "seventy-seven billion, five hundred sixty-eight million, five hundred eighty thousand, one hundred thirty-seven".