78373484259 has 16 divisors (see below), whose sum is σ = 120937989120. Its totient is φ = 44217950400.

The previous prime is 78373484221. The next prime is 78373484297. The reversal of 78373484259 is 95248437387.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78373484221) and next prime (78373484297).

It is not a de Polignac number, because 78373484259 - 2⁸ = 78373484003 is a prime.

It is a super-2 number, since 2×78373484259² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78373484209) 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, 23619042 + ... + 23622359.

It is an arithmetic number, because the mean of its divisors is an integer number (7558624320).

Almost surely, 2^78373484259 is an apocalyptic number.

78373484259 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

78373484259 is a deficient number, since it is larger than the sum of its proper divisors (42564504861).

78373484259 is a wasteful number, since it uses less digits than its factorization.

78373484259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47241490.

The product of its digits is 40642560, while the sum is 60.

The spelling of 78373484259 in words is "seventy-eight billion, three hundred seventy-three million, four hundred eighty-four thousand, two hundred fifty-nine".