9822157487 has 2 divisors, whose sum is σ = 9822157488. Its totient is φ = 9822157486.

The previous prime is 9822157451. The next prime is 9822157489. The reversal of 9822157487 is 7847512289.

9822157487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9822157487 is a prime.

Together with 9822157489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9822157489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4911078743 + 4911078744.

It is an arithmetic number, because the mean of its divisors is an integer number (4911078744).

Almost surely, 2^9822157487 is an apocalyptic number.

9822157487 is a deficient number, since it is larger than the sum of its proper divisors (1).

9822157487 is an equidigital number, since it uses as much as digits as its factorization.

9822157487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 53.

The square root of 9822157487 is about 99106.7983894142. The cubic root of 9822157487 is about 2141.5865521674.

The spelling of 9822157487 in words is "nine billion, eight hundred twenty-two million, one hundred fifty-seven thousand, four hundred eighty-seven".