82020142290 has 64 divisors (see below), whose sum is σ = 198628827264. Its totient is φ = 21674761728.

The previous prime is 82020142261. The next prime is 82020142307. The reversal of 82020142290 is 9224102028.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2395572 + ... + 2429568.

It is an arithmetic number, because the mean of its divisors is an integer number (3103575426).

Almost surely, 2^82020142290 is an apocalyptic number.

82020142290 is an abundant number, since it is smaller than the sum of its proper divisors (116608684974).

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

82020142290 is a wasteful number, since it uses less digits than its factorization.

82020142290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34731.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 82020142290 in words is "eighty-two billion, twenty million, one hundred forty-two thousand, two hundred ninety".