78795506519 has 8 divisors (see below), whose sum is σ = 79012626432. Its totient is φ = 78578446680.

The previous prime is 78795506513. The next prime is 78795506539. The reversal of 78795506519 is 91560559787.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78795506519 is a prime.

It is a super-2 number, since 2×78795506519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78795506513) 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, 4230902 + ... + 4249484.

It is an arithmetic number, because the mean of its divisors is an integer number (9876578304).

Almost surely, 2^78795506519 is an apocalyptic number.

78795506519 is a deficient number, since it is larger than the sum of its proper divisors (217119913).

78795506519 is a wasteful number, since it uses less digits than its factorization.

78795506519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30037.

The product of its (nonzero) digits is 23814000, while the sum is 62.

The spelling of 78795506519 in words is "seventy-eight billion, seven hundred ninety-five million, five hundred six thousand, five hundred nineteen".