78701009317 has 16 divisors (see below), whose sum is σ = 91264642560. Its totient is φ = 66474438912.

The previous prime is 78701009311. The next prime is 78701009351. The reversal of 78701009317 is 71390010787.

It is a de Polignac number, because none of the positive numbers 2^k-78701009317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78701009311) 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 15 ways as a sum of consecutive naturals, for example, 150717 + ... + 424402.

It is an arithmetic number, because the mean of its divisors is an integer number (5704040160).

Almost surely, 2^78701009317 is an apocalyptic number.

It is an amenable number.

78701009317 is a deficient number, since it is larger than the sum of its proper divisors (12563633243).

78701009317 is a wasteful number, since it uses less digits than its factorization.

78701009317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575412.

The product of its (nonzero) digits is 74088, while the sum is 43.

The spelling of 78701009317 in words is "seventy-eight billion, seven hundred one million, nine thousand, three hundred seventeen".