1451661451426 has 8 divisors (see below), whose sum is σ = 2181319054380. Its totient is φ = 724555099968.

The previous prime is 1451661451393. The next prime is 1451661451447. The reversal of 1451661451426 is 6241541661541.

It can be written as a sum of positive squares in 2 ways, for example, as 1449531721225 + 2129730201 = 1203965^2 + 46149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 637811451 + ... + 637813726.

Almost surely, 2^{1451661451426} is an apocalyptic number.

1451661451426 is a deficient number, since it is larger than the sum of its proper divisors (729657602954).

1451661451426 is a wasteful number, since it uses less digits than its factorization.

1451661451426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275625748.

The product of its digits is 691200, while the sum is 46.

The spelling of 1451661451426 in words is "one trillion, four hundred fifty-one billion, six hundred sixty-one million, four hundred fifty-one thousand, four hundred twenty-six".