1051430804449 has 3 divisors (see below), whose sum is σ = 1051431829843. Its totient is φ = 1051429779056.

The previous prime is 1051430804443. The next prime is 1051430804513. The reversal of 1051430804449 is 9444080341501.

The square root of 1051430804449 is 1025393.

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 can be written as a sum of positive squares in only one way, i.e., 6194477025 + 1045236327424 = 78705^2 + 1022368^2 .

It is not a de Polignac number, because 1051430804449 - 2⁷ = 1051430804321 is a prime.

It is a super-2 number, since 2×1051430804449² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051430804443) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 512697 + ... + 1538089.

Almost surely, 2^{1051430804449} is an apocalyptic number.

1051430804449 is the 1025393-rd square number.

1051430804449 is the 512697-th centered octagonal number.

It is an amenable number.

1051430804449 is a deficient number, since it is larger than the sum of its proper divisors (1025394).

1051430804449 is an frugal number, since it uses more digits than its factorization.

1051430804449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050786 (or 1025393 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 1051430804449 in words is "one trillion, fifty-one billion, four hundred thirty million, eight hundred four thousand, four hundred forty-nine".