78444300231825 has 96 divisors (see below), whose sum is σ = 142341081587712. Its totient is φ = 37803791712000.

The previous prime is 78444300231811. The next prime is 78444300231839. The reversal of 78444300231825 is 52813200344487.

It is an interprime number because it is at equal distance from previous prime (78444300231811) and next prime (78444300231839).

It is not a de Polignac number, because 78444300231825 - 2⁵ = 78444300231793 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 194719054 + ... + 195121496.

It is an arithmetic number, because the mean of its divisors is an integer number (1482719599872).

Almost surely, 2^{78444300231825} is an apocalyptic number.

78444300231825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78444300231825 is a deficient number, since it is larger than the sum of its proper divisors (63896781355887).

78444300231825 is a wasteful number, since it uses less digits than its factorization.

78444300231825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403895 (or 403890 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 78444300231825 in words is "seventy-eight trillion, four hundred forty-four billion, three hundred million, two hundred thirty-one thousand, eight hundred twenty-five".