1431728587396 has 24 divisors (see below), whose sum is σ = 2555084914200. Its totient is φ = 701728515072.

The previous prime is 1431728587357. The next prime is 1431728587397. The reversal of 1431728587396 is 6937858271341.

It can be written as a sum of positive squares in 4 ways, for example, as 11970548100 + 1419758039296 = 109410^2 + 1191536^2 .

It is a super-2 number, since 2×1431728587396² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1431728587397) 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 7 ways as a sum of consecutive naturals, for example, 2786221 + ... + 3259828.

It is an arithmetic number, because the mean of its divisors is an integer number (106461871425).

Almost surely, 2^{1431728587396} is an apocalyptic number.

It is an amenable number.

1431728587396 is a deficient number, since it is larger than the sum of its proper divisors (1123356326804).

1431728587396 is a wasteful number, since it uses less digits than its factorization.

1431728587396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047223 (or 6047221 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

The spelling of 1431728587396 in words is "one trillion, four hundred thirty-one billion, seven hundred twenty-eight million, five hundred eighty-seven thousand, three hundred ninety-six".