2261980689860 has 12 divisors (see below), whose sum is σ = 4750159448748. Its totient is φ = 904792275936.

The previous prime is 2261980689851. The next prime is 2261980689893. The reversal of 2261980689860 is 689860891622.

It can be written as a sum of positive squares in 2 ways, for example, as 818080452484 + 1443900237376 = 904478^2 + 1201624^2 .

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, 56549517227 + ... + 56549517266.

It is an arithmetic number, because the mean of its divisors is an integer number (395846620729).

Almost surely, 2^{2261980689860} is an apocalyptic number.

2261980689860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261980689860 is an abundant number, since it is smaller than the sum of its proper divisors (2488178758888).

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

2261980689860 is a wasteful number, since it uses less digits than its factorization.

2261980689860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113099034502 (or 113099034500 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 65.

The spelling of 2261980689860 in words is "two trillion, two hundred sixty-one billion, nine hundred eighty million, six hundred eighty-nine thousand, eight hundred sixty".