1582294799449 has 81 divisors (see below), whose sum is σ = 2087003802429. Its totient is φ = 1195501507200.

The previous prime is 1582294799447. The next prime is 1582294799461. The reversal of 1582294799449 is 9449974922851.

The square root of 1582294799449 is 1257893.

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

It can be written as a sum of positive squares in 4 ways, for example, as 405015625 + 1581889783824 = 20125^2 + 1257732^2 .

It is not a de Polignac number, because 1582294799449 - 2¹ = 1582294799447 is a prime.

It is a super-2 number, since 2×1582294799449² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1582294799447) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2632769749 + ... + 2632770349.

Almost surely, 2^{1582294799449} is an apocalyptic number.

1582294799449 is the 1257893-rd square number.

1582294799449 is the 628947-th centered octagonal number.

It is an amenable number.

1582294799449 is a deficient number, since it is larger than the sum of its proper divisors (504709002980).

1582294799449 is an frugal number, since it uses more digits than its factorization.

1582294799449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 644 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 73.

The spelling of 1582294799449 in words is "one trillion, five hundred eighty-two billion, two hundred ninety-four million, seven hundred ninety-nine thousand, four hundred forty-nine".