2061989180 has 24 divisors (see below), whose sum is σ = 4469861760. Its totient is φ = 798189120.

The previous prime is 2061989147. The next prime is 2061989197. The reversal of 2061989180 is 819891602.

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, 1662275 + ... + 1663514.

It is an arithmetic number, because the mean of its divisors is an integer number (186244240).

Almost surely, 2^2061989180 is an apocalyptic number.

2061989180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061989180 is an abundant number, since it is smaller than the sum of its proper divisors (2407872580).

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

2061989180 is a wasteful number, since it uses less digits than its factorization.

2061989180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325829 (or 3325827 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 2061989180 is about 45409.1310200933. The cubic root of 2061989180 is about 1272.8057463333.

The spelling of 2061989180 in words is "two billion, sixty-one million, nine hundred eighty-nine thousand, one hundred eighty".