77560660039 has 8 divisors (see below), whose sum is σ = 82339742160. Its totient is φ = 72805654656.

The previous prime is 77560660003. The next prime is 77560660069. The reversal of 77560660039 is 93006606577.

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

It is a de Polignac number, because none of the positive numbers 2^k-77560660039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77560659974 and 77560660001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77560660069) 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, 6012544 + ... + 6025429.

It is an arithmetic number, because the mean of its divisors is an integer number (10292467770).

Almost surely, 2^77560660039 is an apocalyptic number.

77560660039 is a deficient number, since it is larger than the sum of its proper divisors (4779082121).

77560660039 is a wasteful number, since it uses less digits than its factorization.

77560660039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12038369.

The product of its (nonzero) digits is 1428840, while the sum is 49.

The spelling of 77560660039 in words is "seventy-seven billion, five hundred sixty million, six hundred sixty thousand, thirty-nine".