22488794987 has 2 divisors, whose sum is σ = 22488794988. Its totient is φ = 22488794986.

The previous prime is 22488794963. The next prime is 22488795013. The reversal of 22488794987 is 78949788422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22488794987 - 2²² = 22484600683 is a prime.

It is not a weakly prime, because it can be changed into another prime (22488794087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11244397493 + 11244397494.

It is an arithmetic number, because the mean of its divisors is an integer number (11244397494).

Almost surely, 2^22488794987 is an apocalyptic number.

22488794987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22488794987 is an equidigital number, since it uses as much as digits as its factorization.

22488794987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 130056192, while the sum is 68.

The spelling of 22488794987 in words is "twenty-two billion, four hundred eighty-eight million, seven hundred ninety-four thousand, nine hundred eighty-seven".