1534431433561 has 8 divisors (see below), whose sum is σ = 1652494430664. Its totient is φ = 1416372695040.

The previous prime is 1534431433511. The next prime is 1534431433589. The reversal of 1534431433561 is 1653341344351.

It can be written as a sum of positive squares in 4 ways, for example, as 164232425536 + 1370199008025 = 405256^2 + 1170555^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1534431433561 - 2²³ = 1534423044953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1534431433511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295720 + ... + 1776601.

It is an arithmetic number, because the mean of its divisors is an integer number (206561803833).

Almost surely, 2^{1534431433561} is an apocalyptic number.

It is an amenable number.

1534431433561 is a deficient number, since it is larger than the sum of its proper divisors (118062997103).

1534431433561 is a wasteful number, since it uses less digits than its factorization.

1534431433561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129291.

The product of its digits is 777600, while the sum is 43.

The spelling of 1534431433561 in words is "one trillion, five hundred thirty-four billion, four hundred thirty-one million, four hundred thirty-three thousand, five hundred sixty-one".