78632015606420 has 24 divisors (see below), whose sum is σ = 173818139762400. Its totient is φ = 29797395387552.

The previous prime is 78632015606407. The next prime is 78632015606467. The reversal of 78632015606420 is 2460651023687.

It is a happy number.

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, 103463178050 + ... + 103463178809.

It is an arithmetic number, because the mean of its divisors is an integer number (7242422490100).

Almost surely, 2^{78632015606420} is an apocalyptic number.

It is an amenable number.

78632015606420 is an abundant number, since it is smaller than the sum of its proper divisors (95186124155980).

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

78632015606420 is a wasteful number, since it uses less digits than its factorization.

78632015606420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206926356887 (or 206926356885 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 78632015606420 in words is "seventy-eight trillion, six hundred thirty-two billion, fifteen million, six hundred six thousand, four hundred twenty".