22861231487 has 2 divisors, whose sum is σ = 22861231488. Its totient is φ = 22861231486.

The previous prime is 22861231453. The next prime is 22861231489. The reversal of 22861231487 is 78413216822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22861231487 - 2¹² = 22861227391 is a prime.

It is a super-3 number, since 3×22861231487³ (a number of 32 digits) contains 333 as substring.

Together with 22861231489, 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 (22861231489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11430615743 + 11430615744.

It is an arithmetic number, because the mean of its divisors is an integer number (11430615744).

Almost surely, 2^22861231487 is an apocalyptic number.

22861231487 is a deficient number, since it is larger than the sum of its proper divisors (1).

22861231487 is an equidigital number, since it uses as much as digits as its factorization.

22861231487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 44.

The spelling of 22861231487 in words is "twenty-two billion, eight hundred sixty-one million, two hundred thirty-one thousand, four hundred eighty-seven".