36571782820 has 12 divisors (see below), whose sum is σ = 76800743964. Its totient is φ = 14628713120.

The previous prime is 36571782781. The next prime is 36571782839. The reversal of 36571782820 is 2828717563.

It can be written as a sum of positive squares in 2 ways, for example, as 24704294976 + 11867487844 = 157176^2 + 108938^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914294551 + ... + 914294590.

It is an arithmetic number, because the mean of its divisors is an integer number (6400061997).

Almost surely, 2^36571782820 is an apocalyptic number.

It is an amenable number.

36571782820 is an abundant number, since it is smaller than the sum of its proper divisors (40228961144).

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

36571782820 is a wasteful number, since it uses less digits than its factorization.

36571782820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828589150 (or 1828589148 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 36571782820 in words is "thirty-six billion, five hundred seventy-one million, seven hundred eighty-two thousand, eight hundred twenty".