2158443876 has 24 divisors (see below), whose sum is σ = 5041520064. Its totient is φ = 718745440.

The previous prime is 2158443869. The next prime is 2158443883. The reversal of 2158443876 is 6783448512.

It is an interprime number because it is at equal distance from previous prime (2158443869) and next prime (2158443883).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79695 + ... + 103286.

It is an arithmetic number, because the mean of its divisors is an integer number (210063336).

Almost surely, 2^2158443876 is an apocalyptic number.

It is an amenable number.

2158443876 is an abundant number, since it is smaller than the sum of its proper divisors (2883076188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2158443876 is a wasteful number, since it uses less digits than its factorization.

2158443876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183971 (or 183969 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 2158443876 is about 46459.0559094780. The cubic root of 2158443876 is about 1292.3503165243.

The spelling of 2158443876 in words is "two billion, one hundred fifty-eight million, four hundred forty-three thousand, eight hundred seventy-six".