2171010994 has 8 divisors (see below), whose sum is σ = 3257766828. Its totient is φ = 1085088720.

The previous prime is 2171010991. The next prime is 2171011019. The reversal of 2171010994 is 4990101712.

It can be written as a sum of positive squares in 2 ways, for example, as 2149527769 + 21483225 = 46363^2 + 4635^2 .

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 (2171010991) 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, 201837 + ... + 212320.

Almost surely, 2^2171010994 is an apocalyptic number.

2171010994 is a deficient number, since it is larger than the sum of its proper divisors (1086755834).

2171010994 is a wasteful number, since it uses less digits than its factorization.

2171010994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416780.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 2171010994 is about 46594.1090053238. The cubic root of 2171010994 is about 1294.8536169219.

The spelling of 2171010994 in words is "two billion, one hundred seventy-one million, ten thousand, nine hundred ninety-four".