15422146489 has 2 divisors, whose sum is σ = 15422146490. Its totient is φ = 15422146488.

The previous prime is 15422146451. The next prime is 15422146543. The reversal of 15422146489 is 98464122451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13325239225 + 2096907264 = 115435^2 + 45792^2 .

It is a cyclic number.

It is not a de Polignac number, because 15422146489 - 2²⁵ = 15388592057 is a prime.

It is not a weakly prime, because it can be changed into another prime (15422146189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7711073244 + 7711073245.

It is an arithmetic number, because the mean of its divisors is an integer number (7711073245).

Almost surely, 2^15422146489 is an apocalyptic number.

It is an amenable number.

15422146489 is a deficient number, since it is larger than the sum of its proper divisors (1).

15422146489 is an equidigital number, since it uses as much as digits as its factorization.

15422146489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 46.

The spelling of 15422146489 in words is "fifteen billion, four hundred twenty-two million, one hundred forty-six thousand, four hundred eighty-nine".