101908788389 has 12 divisors (see below), whose sum is σ = 105035220576. Its totient is φ = 98821904328.

The previous prime is 101908788383. The next prime is 101908788407. The reversal of 101908788389 is 983887809101.

It is a happy number.

It is not a de Polignac number, because 101908788389 - 2⁸ = 101908788133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101908788383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 769472 + ... + 892134.

It is an arithmetic number, because the mean of its divisors is an integer number (8752935048).

Almost surely, 2^101908788389 is an apocalyptic number.

It is an amenable number.

101908788389 is a deficient number, since it is larger than the sum of its proper divisors (3126432187).

101908788389 is an equidigital number, since it uses as much as digits as its factorization.

101908788389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122984 (or 122845 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 62.

The spelling of 101908788389 in words is "one hundred one billion, nine hundred eight million, seven hundred eighty-eight thousand, three hundred eighty-nine".