78337404059 has 4 divisors (see below), whose sum is σ = 78340159560. Its totient is φ = 78334648560.

The previous prime is 78337404037. The next prime is 78337404077. The reversal of 78337404059 is 95040473387.

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 78337404059 - 2⁸ = 78337403803 is a prime.

It is a super-2 number, since 2×78337404059² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78337403998 and 78337404016.

It is not an unprimeable number, because it can be changed into a prime (78337404559) 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, 1334657 + ... + 1392114.

It is an arithmetic number, because the mean of its divisors is an integer number (19585039890).

Almost surely, 2^78337404059 is an apocalyptic number.

78337404059 is a deficient number, since it is larger than the sum of its proper divisors (2755501).

78337404059 is a wasteful number, since it uses less digits than its factorization.

78337404059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755500.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 78337404059 in words is "seventy-eight billion, three hundred thirty-seven million, four hundred four thousand, fifty-nine".