78463261643275 has 6 divisors (see below), whose sum is σ = 97294444437692. Its totient is φ = 62770609314600.

The previous prime is 78463261643231. The next prime is 78463261643281. The reversal of 78463261643275 is 57234616236487.

It is not a de Polignac number, because 78463261643275 - 2¹⁹ = 78463261118987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1569265232841 + ... + 1569265232890.

Almost surely, 2^{78463261643275} is an apocalyptic number.

78463261643275 is a deficient number, since it is larger than the sum of its proper divisors (18831182794417).

78463261643275 is a wasteful number, since it uses less digits than its factorization.

78463261643275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138530465741 (or 3138530465736 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 64.

The spelling of 78463261643275 in words is "seventy-eight trillion, four hundred sixty-three billion, two hundred sixty-one million, six hundred forty-three thousand, two hundred seventy-five".