654063331431 has 4 divisors (see below), whose sum is σ = 872084441912. Its totient is φ = 436042220952.

The previous prime is 654063331429. The next prime is 654063331463. The reversal of 654063331431 is 134133360456.

It is a happy number.

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

It is not a de Polignac number, because 654063331431 - 2¹ = 654063331429 is a prime.

It is a super-2 number, since 2×654063331431² (a number of 24 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 654063331431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654063331631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109010555236 + ... + 109010555241.

It is an arithmetic number, because the mean of its divisors is an integer number (218021110478).

Almost surely, 2^654063331431 is an apocalyptic number.

654063331431 is a deficient number, since it is larger than the sum of its proper divisors (218021110481).

654063331431 is a wasteful number, since it uses less digits than its factorization.

654063331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218021110480.

The product of its (nonzero) digits is 233280, while the sum is 39.

Adding to 654063331431 its reverse (134133360456), we get a palindrome (788196691887).

The spelling of 654063331431 in words is "six hundred fifty-four billion, sixty-three million, three hundred thirty-one thousand, four hundred thirty-one".