2123454676 has 12 divisors (see below), whose sum is σ = 4246909408. Its totient is φ = 910051992.

The previous prime is 2123454659. The next prime is 2123454677. The reversal of 2123454676 is 6764543212.

2123454676 is an admirable number.

It is a super-2 number, since 2×2123454676² = 9018119522052529952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123454677) 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, 37918806 + ... + 37918861.

Almost surely, 2^2123454676 is an apocalyptic number.

It is an amenable number.

2123454676 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2123454676 is a wasteful number, since it uses less digits than its factorization.

2123454676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75837678 (or 75837676 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 2123454676 is about 46080.9578459476. The cubic root of 2123454676 is about 1285.3290755860.

Adding to 2123454676 its reverse (6764543212), we get a palindrome (8887997888).

The spelling of 2123454676 in words is "two billion, one hundred twenty-three million, four hundred fifty-four thousand, six hundred seventy-six".