1451442644026 has 4 divisors (see below), whose sum is σ = 2177163966042. Its totient is φ = 725721322012.

The previous prime is 1451442643991. The next prime is 1451442644123. The reversal of 1451442644026 is 6204462441541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1444085293401 + 7357350625 = 1201701^2 + 85775^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362860661005 + ... + 362860661008.

Almost surely, 2^{1451442644026} is an apocalyptic number.

1451442644026 is a deficient number, since it is larger than the sum of its proper divisors (725721322016).

1451442644026 is an equidigital number, since it uses as much as digits as its factorization.

1451442644026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725721322015.

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 1451442644026 in words is "one trillion, four hundred fifty-one billion, four hundred forty-two million, six hundred forty-four thousand, twenty-six".