78414977364620 has 48 divisors (see below), whose sum is σ = 185048856296640. Its totient is φ = 27694386652416.

The previous prime is 78414977364571. The next prime is 78414977364667. The reversal of 78414977364620 is 2646377941487.

It is a super-2 number, since 2×78414977364620² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6556430255 + ... + 6556442214.

It is an arithmetic number, because the mean of its divisors is an integer number (3855184506180).

Almost surely, 2^{78414977364620} is an apocalyptic number.

It is an amenable number.

78414977364620 is an abundant number, since it is smaller than the sum of its proper divisors (106633878932020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78414977364620 is a wasteful number, since it uses less digits than its factorization.

78414977364620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13112872514 (or 13112872512 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 68.

The spelling of 78414977364620 in words is "seventy-eight trillion, four hundred fourteen billion, nine hundred seventy-seven million, three hundred sixty-four thousand, six hundred twenty".