8178932136620 has 72 divisors (see below), whose sum is σ = 19986819266736. Its totient is φ = 2803242992256.

The previous prime is 8178932136577. The next prime is 8178932136623. The reversal of 8178932136620 is 266312398718.

It is not an unprimeable number, because it can be changed into a prime (8178932136623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1428107 + ... + 4289213.

It is an arithmetic number, because the mean of its divisors is an integer number (277594712038).

Almost surely, 2^{8178932136620} is an apocalyptic number.

It is an amenable number.

8178932136620 is an abundant number, since it is smaller than the sum of its proper divisors (11807887130116).

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

8178932136620 is a wasteful number, since it uses less digits than its factorization.

8178932136620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864047 (or 2864038 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 8178932136620 in words is "eight trillion, one hundred seventy-eight billion, nine hundred thirty-two million, one hundred thirty-six thousand, six hundred twenty".