78463265431825 has 12 divisors (see below), whose sum is σ = 97295310935680. Its totient is φ = 62770056345360.

The previous prime is 78463265431799. The next prime is 78463265431849. The reversal of 78463265431825 is 52813456236487.

It is not a de Polignac number, because 78463265431825 - 2¹¹ = 78463265429777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11009349 + ... + 16677298.

Almost surely, 2^{78463265431825} is an apocalyptic number.

It is an amenable number.

78463265431825 is a deficient number, since it is larger than the sum of its proper divisors (18832045503855).

78463265431825 is a wasteful number, since it uses less digits than its factorization.

78463265431825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27800016 (or 27800011 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 64.

The spelling of 78463265431825 in words is "seventy-eight trillion, four hundred sixty-three billion, two hundred sixty-five million, four hundred thirty-one thousand, eight hundred twenty-five".