1431207948469 has 4 divisors (see below), whose sum is σ = 1541300867596. Its totient is φ = 1321115029344.

The previous prime is 1431207948461. The next prime is 1431207948481. The reversal of 1431207948469 is 9648497021341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 226065064369 + 1205142884100 = 475463^2 + 1097790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431207948469 - 2³ = 1431207948461 is a prime.

It is a super-2 number, since 2×1431207948469² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431207948461) 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, 55046459544 + ... + 55046459569.

It is an arithmetic number, because the mean of its divisors is an integer number (385325216899).

Almost surely, 2^{1431207948469} is an apocalyptic number.

It is an amenable number.

1431207948469 is a deficient number, since it is larger than the sum of its proper divisors (110092919127).

1431207948469 is a wasteful number, since it uses less digits than its factorization.

1431207948469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110092919126.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 1431207948469 in words is "one trillion, four hundred thirty-one billion, two hundred seven million, nine hundred forty-eight thousand, four hundred sixty-nine".