78648625474 has 8 divisors (see below), whose sum is σ = 117975735360. Its totient is φ = 39323380356.

The previous prime is 78648625439. The next prime is 78648625513. The reversal of 78648625474 is 47452684687.

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

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 3 ways as a sum of consecutive naturals, for example, 355494 + ... + 532609.

It is an arithmetic number, because the mean of its divisors is an integer number (14746966920).

Almost surely, 2^78648625474 is an apocalyptic number.

78648625474 is a deficient number, since it is larger than the sum of its proper divisors (39327109886).

78648625474 is a wasteful number, since it uses less digits than its factorization.

78648625474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932384.

The product of its digits is 72253440, while the sum is 61.

The spelling of 78648625474 in words is "seventy-eight billion, six hundred forty-eight million, six hundred twenty-five thousand, four hundred seventy-four".