78373484258 has 8 divisors (see below), whose sum is σ = 119778344028. Its totient is φ = 38447369584.

The previous prime is 78373484221. The next prime is 78373484297. The reversal of 78373484258 is 85248437387.

It can be written as a sum of positive squares in 2 ways, for example, as 77082303769 + 1291180489 = 277637^2 + 35933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78373484258² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78373484197 and 78373484206.

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, 369686141 + ... + 369686352.

Almost surely, 2^78373484258 is an apocalyptic number.

78373484258 is a deficient number, since it is larger than the sum of its proper divisors (41404859770).

78373484258 is a wasteful number, since it uses less digits than its factorization.

78373484258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739372548.

The product of its digits is 36126720, while the sum is 59.

The spelling of 78373484258 in words is "seventy-eight billion, three hundred seventy-three million, four hundred eighty-four thousand, two hundred fifty-eight".