8499405551431 has 2 divisors, whose sum is σ = 8499405551432. Its totient is φ = 8499405551430.

The previous prime is 8499405551411. The next prime is 8499405551473. The reversal of 8499405551431 is 1341555049948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8499405551431 is a prime.

It is a super-2 number, since 2×8499405551431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8499405551411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4249702775715 + 4249702775716.

It is an arithmetic number, because the mean of its divisors is an integer number (4249702775716).

Almost surely, 2^{8499405551431} is an apocalyptic number.

8499405551431 is a deficient number, since it is larger than the sum of its proper divisors (1).

8499405551431 is an equidigital number, since it uses as much as digits as its factorization.

8499405551431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 8499405551431 in words is "eight trillion, four hundred ninety-nine billion, four hundred five million, five hundred fifty-one thousand, four hundred thirty-one".