1419526890721 has 3 divisors (see below), whose sum is σ = 1419528082161. Its totient is φ = 1419525699282.

The previous prime is 1419526890703. The next prime is 1419526890757. The reversal of 1419526890721 is 1270986259141.

The square root of 1419526890721 is 1191439.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1419526890721 - 2⁵ = 1419526890689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1419526890521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 595720 + ... + 1787158.

It is an arithmetic number, because the mean of its divisors is an integer number (473176027387).

Almost surely, 2^{1419526890721} is an apocalyptic number.

1419526890721 is the 1191439-th square number.

1419526890721 is the 595720-th centered octagonal number.

It is an amenable number.

1419526890721 is a deficient number, since it is larger than the sum of its proper divisors (1191440).

1419526890721 is an frugal number, since it uses more digits than its factorization.

1419526890721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382878 (or 1191439 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 1419526890721 in words is "one trillion, four hundred nineteen billion, five hundred twenty-six million, eight hundred ninety thousand, seven hundred twenty-one".