78996905299 has 8 divisors (see below), whose sum is σ = 86271810912. Its totient is φ = 71893174080.

The previous prime is 78996905279. The next prime is 78996905303. The reversal of 78996905299 is 99250969987.

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

It is not a de Polignac number, because 78996905299 - 2⁷ = 78996905171 is a prime.

It is a super-2 number, since 2×78996905299² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78996905279) 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, 42792634 + ... + 42794479.

It is an arithmetic number, because the mean of its divisors is an integer number (10783976364).

Almost surely, 2^78996905299 is an apocalyptic number.

78996905299 is a deficient number, since it is larger than the sum of its proper divisors (7274905613).

78996905299 is a wasteful number, since it uses less digits than its factorization.

78996905299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85587197.

The product of its (nonzero) digits is 198404640, while the sum is 73.

The spelling of 78996905299 in words is "seventy-eight billion, nine hundred ninety-six million, nine hundred five thousand, two hundred ninety-nine".