2170769979 has 32 divisors (see below), whose sum is σ = 3376414720. Its totient is φ = 1214976672.

The previous prime is 2170769963. The next prime is 2170769999. The reversal of 2170769979 is 9799670712.

It is not a de Polignac number, because 2170769979 - 2⁴ = 2170769963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2170769999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205542 + ... + 215844.

It is an arithmetic number, because the mean of its divisors is an integer number (105512960).

Almost surely, 2^2170769979 is an apocalyptic number.

2170769979 is a deficient number, since it is larger than the sum of its proper divisors (1205644741).

2170769979 is a wasteful number, since it uses less digits than its factorization.

2170769979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10519.

The product of its (nonzero) digits is 3000564, while the sum is 57.

The square root of 2170769979 is about 46591.5226087322. The cubic root of 2170769979 is about 1294.8056990479.

The spelling of 2170769979 in words is "two billion, one hundred seventy million, seven hundred sixty-nine thousand, nine hundred seventy-nine".