2190129879 has 32 divisors (see below), whose sum is σ = 3420071424. Its totient is φ = 1220567040.

The previous prime is 2190129871. The next prime is 2190129917. The reversal of 2190129879 is 9789210912.

2190129879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2190129879 - 2³ = 2190129871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190129871) 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, 794167 + ... + 796919.

It is an arithmetic number, because the mean of its divisors is an integer number (106877232).

Almost surely, 2^2190129879 is an apocalyptic number.

2190129879 is a deficient number, since it is larger than the sum of its proper divisors (1229941545).

2190129879 is a wasteful number, since it uses less digits than its factorization.

2190129879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687.

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 2190129879 is about 46798.8234788013. The cubic root of 2190129879 is about 1298.6435316511.

The spelling of 2190129879 in words is "two billion, one hundred ninety million, one hundred twenty-nine thousand, eight hundred seventy-nine".