78465515724628 has 24 divisors (see below), whose sum is σ = 137621257956000. Its totient is φ = 39145171658208.

The previous prime is 78465515724593. The next prime is 78465515724641. The reversal of 78465515724628 is 82642751556487.

78465515724628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18595798 + ... + 22421746.

It is an arithmetic number, because the mean of its divisors is an integer number (5734219081500).

Almost surely, 2^{78465515724628} is an apocalyptic number.

It is an amenable number.

78465515724628 is a deficient number, since it is larger than the sum of its proper divisors (59155742231372).

78465515724628 is a wasteful number, since it uses less digits than its factorization.

78465515724628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837399 (or 3837397 counting only the distinct ones).

The product of its digits is 903168000, while the sum is 70.

The spelling of 78465515724628 in words is "seventy-eight trillion, four hundred sixty-five billion, five hundred fifteen million, seven hundred twenty-four thousand, six hundred twenty-eight".