2179990801 has 16 divisors (see below), whose sum is σ = 2361540096. Its totient is φ = 2004522496.

The previous prime is 2179990739. The next prime is 2179990837. The reversal of 2179990801 is 1080999712.

It is a happy number.

It is not a de Polignac number, because 2179990801 - 2²³ = 2171602193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2179993801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514845 + ... + 519061.

It is an arithmetic number, because the mean of its divisors is an integer number (147596256).

Almost surely, 2^2179990801 is an apocalyptic number.

It is an amenable number.

2179990801 is a deficient number, since it is larger than the sum of its proper divisors (181549295).

2179990801 is a wasteful number, since it uses less digits than its factorization.

2179990801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 2179990801 is about 46690.3716091444. The cubic root of 2179990801 is about 1296.6364331527.

The spelling of 2179990801 in words is "two billion, one hundred seventy-nine million, nine hundred ninety thousand, eight hundred one".