2081429877 has 4 divisors (see below), whose sum is σ = 2775239840. Its totient is φ = 1387619916.

The previous prime is 2081429849. The next prime is 2081429887. The reversal of 2081429877 is 7789241802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2081429877 - 2⁶ = 2081429813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081429887) 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, 346904977 + ... + 346904982.

It is an arithmetic number, because the mean of its divisors is an integer number (693809960).

Almost surely, 2^2081429877 is an apocalyptic number.

It is an amenable number.

2081429877 is a deficient number, since it is larger than the sum of its proper divisors (693809963).

2081429877 is an equidigital number, since it uses as much as digits as its factorization.

2081429877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693809962.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 2081429877 is about 45622.6903744179. The cubic root of 2081429877 is about 1276.7932990559.

The spelling of 2081429877 in words is "two billion, eighty-one million, four hundred twenty-nine thousand, eight hundred seventy-seven".