78836428259 has 8 divisors (see below), whose sum is σ = 82525731840. Its totient is φ = 75218761800.

The previous prime is 78836428241. The next prime is 78836428267. The reversal of 78836428259 is 95282463887.

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

It is a cyclic number.

It is not a de Polignac number, because 78836428259 - 2¹⁶ = 78836362723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78836428859) 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, 17907029 + ... + 17911430.

It is an arithmetic number, because the mean of its divisors is an integer number (10315716480).

Almost surely, 2^78836428259 is an apocalyptic number.

78836428259 is a deficient number, since it is larger than the sum of its proper divisors (3689303581).

78836428259 is a wasteful number, since it uses less digits than its factorization.

78836428259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35818561.

The product of its digits is 46448640, while the sum is 62.

The spelling of 78836428259 in words is "seventy-eight billion, eight hundred thirty-six million, four hundred twenty-eight thousand, two hundred fifty-nine".