1431587445172 has 12 divisors (see below), whose sum is σ = 2527448631876. Its totient is φ = 709459264640.

The previous prime is 1431587445161. The next prime is 1431587445173. The reversal of 1431587445172 is 2715447851341.

It can be written as a sum of positive squares in 2 ways, for example, as 447515509156 + 984071936016 = 668966^2 + 992004^2 .

It is a super-2 number, since 2×1431587445172² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431587445173) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1583613979 + ... + 1583614882.

It is an arithmetic number, because the mean of its divisors is an integer number (210620719323).

Almost surely, 2^{1431587445172} is an apocalyptic number.

It is an amenable number.

1431587445172 is a deficient number, since it is larger than the sum of its proper divisors (1095861186704).

1431587445172 is a wasteful number, since it uses less digits than its factorization.

1431587445172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167228978 (or 3167228976 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 52.

The spelling of 1431587445172 in words is "one trillion, four hundred thirty-one billion, five hundred eighty-seven million, four hundred forty-five thousand, one hundred seventy-two".