2101878410 has 8 divisors (see below), whose sum is σ = 3783381156. Its totient is φ = 840751360.

The previous prime is 2101878349. The next prime is 2101878413. The reversal of 2101878410 is 148781012.

It can be written as a sum of positive squares in 2 ways, for example, as 1705111849 + 396766561 = 41293^2 + 19919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2101878413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105093911 + ... + 105093930.

Almost surely, 2^2101878410 is an apocalyptic number.

2101878410 is a deficient number, since it is larger than the sum of its proper divisors (1681502746).

2101878410 is a wasteful number, since it uses less digits than its factorization.

2101878410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210187848.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 2101878410 is about 45846.2475018403. The cubic root of 2101878410 is about 1280.9608690915.

The spelling of 2101878410 in words is "two billion, one hundred one million, eight hundred seventy-eight thousand, four hundred ten".