78996895207 has 4 divisors (see below), whose sum is σ = 79056426976. Its totient is φ = 78937363440.

The previous prime is 78996895189. The next prime is 78996895291. The reversal of 78996895207 is 70259869987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70259869987 = 1213 ⋅57922399.

It is a cyclic number.

It is not a de Polignac number, because 78996895207 - 2⁷ = 78996895079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78996895507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29763894 + ... + 29766547.

It is an arithmetic number, because the mean of its divisors is an integer number (19764106744).

Almost surely, 2^78996895207 is an apocalyptic number.

78996895207 is a deficient number, since it is larger than the sum of its proper divisors (59531769).

78996895207 is a wasteful number, since it uses less digits than its factorization.

78996895207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59531768.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 78996895207 in words is "seventy-eight billion, nine hundred ninety-six million, eight hundred ninety-five thousand, two hundred seven".