78925833895 has 4 divisors (see below), whose sum is σ = 94711000680. Its totient is φ = 63140667112.

The previous prime is 78925833841. The next prime is 78925833901. The reversal of 78925833895 is 59833852987.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78925833895 - 2²¹ = 78923736743 is a prime.

It is a super-2 number, since 2×78925833895² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 78925833895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7892583385 + ... + 7892583394.

It is an arithmetic number, because the mean of its divisors is an integer number (23677750170).

Almost surely, 2^78925833895 is an apocalyptic number.

78925833895 is a deficient number, since it is larger than the sum of its proper divisors (15785166785).

78925833895 is a wasteful number, since it uses less digits than its factorization.

78925833895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15785166784.

The product of its digits is 130636800, while the sum is 67.

The spelling of 78925833895 in words is "seventy-eight billion, nine hundred twenty-five million, eight hundred thirty-three thousand, eight hundred ninety-five".