431987423453 has 32 divisors (see below), whose sum is σ = 471649677408. Its totient is φ = 394000588800.

The previous prime is 431987423437. The next prime is 431987423473. The reversal of 431987423453 is 354324789134.

It can be written as a sum of positive squares in 16 ways, for example, as 316864290649 + 115123132804 = 562907^2 + 339298^2 .

It is a cyclic number.

It is not a de Polignac number, because 431987423453 - 2⁴ = 431987423437 is a prime.

It is a super-2 number, since 2×431987423453² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431987423395 and 431987423404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431987423473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248125163 + ... + 248126903.

It is an arithmetic number, because the mean of its divisors is an integer number (14739052419).

Almost surely, 2^431987423453 is an apocalyptic number.

It is an amenable number.

431987423453 is a deficient number, since it is larger than the sum of its proper divisors (39662253955).

431987423453 is a wasteful number, since it uses less digits than its factorization.

431987423453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153.

The product of its digits is 8709120, while the sum is 53.

The spelling of 431987423453 in words is "four hundred thirty-one billion, nine hundred eighty-seven million, four hundred twenty-three thousand, four hundred fifty-three".