11501422489 has 2 divisors, whose sum is σ = 11501422490. Its totient is φ = 11501422488.

The previous prime is 11501422483. The next prime is 11501422523. The reversal of 11501422489 is 98422410511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11313513225 + 187909264 = 106365^2 + 13708^2 .

It is a cyclic number.

It is not a de Polignac number, because 11501422489 - 2¹⁵ = 11501389721 is a prime.

It is not a weakly prime, because it can be changed into another prime (11501422483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750711244 + 5750711245.

It is an arithmetic number, because the mean of its divisors is an integer number (5750711245).

Almost surely, 2^11501422489 is an apocalyptic number.

It is an amenable number.

11501422489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11501422489 is an equidigital number, since it uses as much as digits as its factorization.

11501422489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 11501422489 in words is "eleven billion, five hundred one million, four hundred twenty-two thousand, four hundred eighty-nine".