78466093925 has 6 divisors (see below), whose sum is σ = 97297956498. Its totient is φ = 62772875120.

The previous prime is 78466093829. The next prime is 78466093931. The reversal of 78466093925 is 52939066487.

It is a Cunningham number, because it is equal to 280118²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 78466093924 = 1^2 + 280118^2 .

It is not a de Polignac number, because 78466093925 - 2¹⁴ = 78466077541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1569321854 + ... + 1569321903.

It is an arithmetic number, because the mean of its divisors is an integer number (16216326083).

Almost surely, 2^78466093925 is an apocalyptic number.

It is an amenable number.

78466093925 is a deficient number, since it is larger than the sum of its proper divisors (18831862573).

78466093925 is a wasteful number, since it uses less digits than its factorization.

78466093925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138643767 (or 3138643762 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 78466093925 in words is "seventy-eight billion, four hundred sixty-six million, ninety-three thousand, nine hundred twenty-five".