2126667456 has 84 divisors (see below), whose sum is σ = 6292396864. Its totient is φ = 686016000.

The previous prime is 2126667443. The next prime is 2126667457. The reversal of 2126667456 is 6547666212.

It is not an unprimeable number, because it can be changed into a prime (2126667457) 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, 41695 + ... + 77406.

Almost surely, 2^2126667456 is an apocalyptic number.

It is an amenable number.

2126667456 is an abundant number, since it is smaller than the sum of its proper divisors (4165729408).

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

2126667456 is a wasteful number, since it uses less digits than its factorization.

2126667456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119150 (or 119137 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 2126667456 is about 46115.8048395558. The cubic root of 2126667456 is about 1285.9769818357.

The spelling of 2126667456 in words is "two billion, one hundred twenty-six million, six hundred sixty-seven thousand, four hundred fifty-six".