2101880258 has 4 divisors (see below), whose sum is σ = 3152820390. Its totient is φ = 1050940128.

The previous prime is 2101880243. The next prime is 2101880267. The reversal of 2101880258 is 8520881012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1254080569 + 847799689 = 35413^2 + 29117^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525470063 + ... + 525470066.

Almost surely, 2^2101880258 is an apocalyptic number.

2101880258 is a deficient number, since it is larger than the sum of its proper divisors (1050940132).

2101880258 is a wasteful number, since it uses less digits than its factorization.

2101880258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050940131.

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 2101880258 is about 45846.2676561571. The cubic root of 2101880258 is about 1280.9612445041.

The spelling of 2101880258 in words is "two billion, one hundred one million, eight hundred eighty thousand, two hundred fifty-eight".