2101807692 has 18 divisors (see below), whose sum is σ = 5312902868. Its totient is φ = 700602552.

The previous prime is 2101807663. The next prime is 2101807693. The reversal of 2101807692 is 2967081012.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 58383547 = 2101807692 / (2 + 1 + 0 + 1 + 8 + 0 + 7 + 6 + 9 + 2).

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 5 ways as a sum of consecutive naturals, for example, 29191738 + ... + 29191809.

Almost surely, 2^2101807692 is an apocalyptic number.

It is an amenable number.

2101807692 is an abundant number, since it is smaller than the sum of its proper divisors (3211095176).

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

2101807692 is a wasteful number, since it uses less digits than its factorization.

2101807692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58383557 (or 58383552 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 2101807692 is about 45845.4762435728. The cubic root of 2101807692 is about 1280.9465028931.

The spelling of 2101807692 in words is "two billion, one hundred one million, eight hundred seven thousand, six hundred ninety-two".