78332225839 has 16 divisors (see below), whose sum is σ = 90379577088. Its totient is φ = 66499417152.

The previous prime is 78332225837. The next prime is 78332225843. The reversal of 78332225839 is 93852223387.

It is not a de Polignac number, because 78332225839 - 2¹ = 78332225837 is a prime.

It is a super-2 number, since 2×78332225839² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78332225837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4427499 + ... + 4445155.

It is an arithmetic number, because the mean of its divisors is an integer number (5648723568).

Almost surely, 2^78332225839 is an apocalyptic number.

78332225839 is a deficient number, since it is larger than the sum of its proper divisors (12047351249).

78332225839 is a wasteful number, since it uses less digits than its factorization.

78332225839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23694.

The product of its digits is 4354560, while the sum is 52.

The spelling of 78332225839 in words is "seventy-eight billion, three hundred thirty-two million, two hundred twenty-five thousand, eight hundred thirty-nine".