2101807694 has 16 divisors (see below), whose sum is σ = 3629402208. Its totient is φ = 894198912.

The previous prime is 2101807693. The next prime is 2101807769. The reversal of 2101807694 is 4967081012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101807693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545999 + ... + 549834.

It is an arithmetic number, because the mean of its divisors is an integer number (226837638).

Almost surely, 2^2101807694 is an apocalyptic number.

2101807694 is a deficient number, since it is larger than the sum of its proper divisors (1527594514).

2101807694 is a wasteful number, since it uses less digits than its factorization.

2101807694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095979.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 2101807694 is about 45845.4762653852. The cubic root of 2101807694 is about 1280.9465032994.

The spelling of 2101807694 in words is "two billion, one hundred one million, eight hundred seven thousand, six hundred ninety-four".