78620673399 has 8 divisors (see below), whose sum is σ = 104848087152. Its totient is φ = 52403520960.

The previous prime is 78620673377. The next prime is 78620673403. The reversal of 78620673399 is 99337602687.

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

It is not a de Polignac number, because 78620673399 - 2²¹ = 78618576247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78620673799) 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, 2547432 + ... + 2578109.

It is an arithmetic number, because the mean of its divisors is an integer number (13106010894).

Almost surely, 2^78620673399 is an apocalyptic number.

78620673399 is a deficient number, since it is larger than the sum of its proper divisors (26227413753).

78620673399 is a wasteful number, since it uses less digits than its factorization.

78620673399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130657.

The product of its (nonzero) digits is 20575296, while the sum is 60.

The spelling of 78620673399 in words is "seventy-eight billion, six hundred twenty million, six hundred seventy-three thousand, three hundred ninety-nine".