78625476478 has 8 divisors (see below), whose sum is σ = 118106459640. Its totient is φ = 39256656600.

The previous prime is 78625476473. The next prime is 78625476511. The reversal of 78625476478 is 87467452687.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625476473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28039068 + ... + 28041871.

It is an arithmetic number, because the mean of its divisors is an integer number (14763307455).

Almost surely, 2^78625476478 is an apocalyptic number.

78625476478 is a deficient number, since it is larger than the sum of its proper divisors (39480983162).

78625476478 is a wasteful number, since it uses less digits than its factorization.

78625476478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56081642.

The product of its digits is 126443520, while the sum is 64.

The spelling of 78625476478 in words is "seventy-eight billion, six hundred twenty-five million, four hundred seventy-six thousand, four hundred seventy-eight".