2079871887 has 4 divisors (see below), whose sum is σ = 2773162520. Its totient is φ = 1386581256.

The previous prime is 2079871867. The next prime is 2079871949. The reversal of 2079871887 is 7881789702.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2079871887 - 2⁶ = 2079871823 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 (2079871847) 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, 346645312 + ... + 346645317.

It is an arithmetic number, because the mean of its divisors is an integer number (693290630).

Almost surely, 2^2079871887 is an apocalyptic number.

2079871887 is a deficient number, since it is larger than the sum of its proper divisors (693290633).

2079871887 is an equidigital number, since it uses as much as digits as its factorization.

2079871887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693290632.

The product of its (nonzero) digits is 3161088, while the sum is 57.

The square root of 2079871887 is about 45605.6124506623. The cubic root of 2079871887 is about 1276.4746514848.

The spelling of 2079871887 in words is "two billion, seventy-nine million, eight hundred seventy-one thousand, eight hundred eighty-seven".