2107423881 has 12 divisors (see below), whose sum is σ = 3149024580. Its totient is φ = 1356502560.

The previous prime is 2107423873. The next prime is 2107423909. The reversal of 2107423881 is 1883247012.

It can be written as a sum of positive squares in 2 ways, for example, as 1160015481 + 947408400 = 34059^2 + 30780^2 .

It is not a de Polignac number, because 2107423881 - 2³ = 2107423873 is a prime.

It is a super-2 number, since 2×2107423881² = 8882470828418204322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2107423081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4036950 + ... + 4037471.

It is an arithmetic number, because the mean of its divisors is an integer number (262418715).

Almost surely, 2^2107423881 is an apocalyptic number.

It is an amenable number.

2107423881 is a deficient number, since it is larger than the sum of its proper divisors (1041600699).

2107423881 is a wasteful number, since it uses less digits than its factorization.

2107423881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074456 (or 8074453 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2107423881 is about 45906.6866698088. The cubic root of 2107423881 is about 1282.0864168048.

It can be divided in two parts, 2107423 and 881, that added together give a square (2108304 = 1452²).

The spelling of 2107423881 in words is "two billion, one hundred seven million, four hundred twenty-three thousand, eight hundred eighty-one".