2123425668 has 48 divisors (see below), whose sum is σ = 6098046080. Its totient is φ = 560024064.

The previous prime is 2123425663. The next prime is 2123425669. The reversal of 2123425668 is 8665243212.

2123425668 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2123425663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971173 + ... + 973356.

Almost surely, 2^2123425668 is an apocalyptic number.

2123425668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2123425668 is an abundant number, since it is smaller than the sum of its proper divisors (3974620412).

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

2123425668 is a wasteful number, since it uses less digits than its factorization.

2123425668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944556 (or 1944554 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 2123425668 is about 46080.6430944708. The cubic root of 2123425668 is about 1285.3232227030.

The spelling of 2123425668 in words is "two billion, one hundred twenty-three million, four hundred twenty-five thousand, six hundred sixty-eight".