1240508633889 has 16 divisors (see below), whose sum is σ = 1894810337280. Its totient is φ = 707170276560.

The previous prime is 1240508633869. The next prime is 1240508633909. The reversal of 1240508633889 is 9883368050421.

It is an interprime number because it is at equal distance from previous prime (1240508633869) and next prime (1240508633909).

It is not a de Polignac number, because 1240508633889 - 2⁵ = 1240508633857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240508633809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70482657 + ... + 70500254.

It is an arithmetic number, because the mean of its divisors is an integer number (118425646080).

Almost surely, 2^{1240508633889} is an apocalyptic number.

It is an amenable number.

1240508633889 is a deficient number, since it is larger than the sum of its proper divisors (654301703391).

1240508633889 is a wasteful number, since it uses less digits than its factorization.

1240508633889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140983340.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 1240508633889 in words is "one trillion, two hundred forty billion, five hundred eight million, six hundred thirty-three thousand, eight hundred eighty-nine".