8134874820020 has 24 divisors (see below), whose sum is σ = 18397332285864. Its totient is φ = 3003646087296.

The previous prime is 8134874820011. The next prime is 8134874820049. The reversal of 8134874820020 is 200284784318.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101300885284 + 8033573934736 = 318278^2 + 2834356^2 .

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, 15643989779 + ... + 15643990298.

It is an arithmetic number, because the mean of its divisors is an integer number (766555511911).

Almost surely, 2^{8134874820020} is an apocalyptic number.

It is an amenable number.

8134874820020 is an abundant number, since it is smaller than the sum of its proper divisors (10262457465844).

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

8134874820020 is a wasteful number, since it uses less digits than its factorization.

8134874820020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31287980099 (or 31287980097 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The spelling of 8134874820020 in words is "eight trillion, one hundred thirty-four billion, eight hundred seventy-four million, eight hundred twenty thousand, twenty".