8624722623431 has 2 divisors, whose sum is σ = 8624722623432. Its totient is φ = 8624722623430.

The previous prime is 8624722623409. The next prime is 8624722623463. The reversal of 8624722623431 is 1343262274268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8624722623431 - 2⁴² = 4226676112327 is a prime.

It is a super-2 number, since 2×8624722623431² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8624722623431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8624722629431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312361311715 + 4312361311716.

It is an arithmetic number, because the mean of its divisors is an integer number (4312361311716).

Almost surely, 2^{8624722623431} is an apocalyptic number.

8624722623431 is a deficient number, since it is larger than the sum of its proper divisors (1).

8624722623431 is an equidigital number, since it uses as much as digits as its factorization.

8624722623431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 50.

Adding to 8624722623431 its reverse (1343262274268), we get a palindrome (9967984897699).

The spelling of 8624722623431 in words is "eight trillion, six hundred twenty-four billion, seven hundred twenty-two million, six hundred twenty-three thousand, four hundred thirty-one".