8135480742020 has 24 divisors (see below), whose sum is σ = 17109745199064. Its totient is φ = 3249385508096.

The previous prime is 8135480742007. The next prime is 8135480742029. The reversal of 8135480742020 is 202470845318.

It can be written as a sum of positive squares in 4 ways, for example, as 1034406975364 + 7101073766656 = 1017058^2 + 2664784^2 .

It is not an unprimeable number, because it can be changed into a prime (8135480742029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300410417 + ... + 300437496.

It is an arithmetic number, because the mean of its divisors is an integer number (712906049961).

Almost surely, 2^{8135480742020} is an apocalyptic number.

It is an amenable number.

8135480742020 is an abundant number, since it is smaller than the sum of its proper divisors (8974264457044).

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

8135480742020 is a wasteful number, since it uses less digits than its factorization.

8135480742020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600848599 (or 600848597 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 8135480742020 in words is "eight trillion, one hundred thirty-five billion, four hundred eighty million, seven hundred forty-two thousand, twenty".