2100881156 has 12 divisors (see below), whose sum is σ = 4010773200. Its totient is φ = 954945960.

The previous prime is 2100881147. The next prime is 2100881161. The reversal of 2100881156 is 6511880012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23873606 + ... + 23873693.

It is an arithmetic number, because the mean of its divisors is an integer number (334231100).

Almost surely, 2^2100881156 is an apocalyptic number.

It is an amenable number.

2100881156 is a deficient number, since it is larger than the sum of its proper divisors (1909892044).

2100881156 is a wasteful number, since it uses less digits than its factorization.

2100881156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47747314 (or 47747312 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 2100881156 is about 45835.3701414094. The cubic root of 2100881156 is about 1280.7582494681.

The spelling of 2100881156 in words is "two billion, one hundred million, eight hundred eighty-one thousand, one hundred fifty-six".