1431047557696 has 21 divisors (see below), whose sum is σ = 2839753988121. Its totient is φ = 715518993792.

The previous prime is 1431047557661. The next prime is 1431047557699. The reversal of 1431047557696 is 6967557401341.

The square root of 1431047557696 is 1196264.

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

It can be written as a sum of positive squares in only one way, i.e., 1060488040000 + 370559517696 = 1029800^2 + 608736^2 .

It is a super-2 number, since 2×1431047557696² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431047557696.

It is not an unprimeable number, because it can be changed into a prime (1431047557699) 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, 9495346 + ... + 9644878.

Almost surely, 2^{1431047557696} is an apocalyptic number.

1431047557696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1431047557696 is the 1196264-th square number.

It is an amenable number.

1431047557696 is a deficient number, since it is larger than the sum of its proper divisors (1408706430425).

1431047557696 is an frugal number, since it uses more digits than its factorization.

1431047557696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299078 (or 149535 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 1431047557696 in words is "one trillion, four hundred thirty-one billion, forty-seven million, five hundred fifty-seven thousand, six hundred ninety-six".