2171670802 has 16 divisors (see below), whose sum is σ = 3723907392. Its totient is φ = 930455280.

The previous prime is 2171670769. The next prime is 2171670803. The reversal of 2171670802 is 2080761712.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2171670803) 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, 35152 + ... + 74692.

It is an arithmetic number, because the mean of its divisors is an integer number (232744212).

Almost surely, 2^2171670802 is an apocalyptic number.

2171670802 is a deficient number, since it is larger than the sum of its proper divisors (1552236590).

2171670802 is a wasteful number, since it uses less digits than its factorization.

2171670802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43473.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 2171670802 is about 46601.1888474962. The cubic root of 2171670802 is about 1294.9847798135.

The spelling of 2171670802 in words is "two billion, one hundred seventy-one million, six hundred seventy thousand, eight hundred two".