78892424053 has 4 divisors (see below), whose sum is σ = 78894302220. Its totient is φ = 78890545888.

The previous prime is 78892424033. The next prime is 78892424071. The reversal of 78892424053 is 35042429887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35042429887 = 113 ⋅310109999.

It can be written as a sum of positive squares in 2 ways, for example, as 60524856324 + 18367567729 = 246018^2 + 135527^2 .

It is a cyclic number.

It is not a de Polignac number, because 78892424053 - 2²¹ = 78890326901 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 (78892424033) 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, 874600 + ... + 960577.

It is an arithmetic number, because the mean of its divisors is an integer number (19723575555).

Almost surely, 2^78892424053 is an apocalyptic number.

It is an amenable number.

78892424053 is a deficient number, since it is larger than the sum of its proper divisors (1878167).

78892424053 is a wasteful number, since it uses less digits than its factorization.

78892424053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878166.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 78892424053 in words is "seventy-eight billion, eight hundred ninety-two million, four hundred twenty-four thousand, fifty-three".