2115880671 has 4 divisors (see below), whose sum is σ = 2821174232. Its totient is φ = 1410587112.

The previous prime is 2115880651. The next prime is 2115880721. The reversal of 2115880671 is 1760885112.

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

It is not a de Polignac number, because 2115880671 - 2¹⁴ = 2115864287 is a prime.

It is a super-2 number, since 2×2115880671² = 8953902027822820482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115880651) 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, 352646776 + ... + 352646781.

It is an arithmetic number, because the mean of its divisors is an integer number (705293558).

Almost surely, 2^2115880671 is an apocalyptic number.

2115880671 is a deficient number, since it is larger than the sum of its proper divisors (705293561).

2115880671 is an equidigital number, since it uses as much as digits as its factorization.

2115880671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705293560.

The product of its (nonzero) digits is 26880, while the sum is 39.

The square root of 2115880671 is about 45998.7029273652. The cubic root of 2115880671 is about 1283.7990709793.

The spelling of 2115880671 in words is "two billion, one hundred fifteen million, eight hundred eighty thousand, six hundred seventy-one".