1909631097368 has 32 divisors (see below), whose sum is σ = 3770512178400. Its totient is φ = 904922903808.

The previous prime is 1909631097331. The next prime is 1909631097379. The reversal of 1909631097368 is 8637901369091.

It is a self number, because there is not a number n which added to its sum of digits gives 1909631097368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47587421 + ... + 47627532.

It is an arithmetic number, because the mean of its divisors is an integer number (117828505575).

Almost surely, 2^{1909631097368} is an apocalyptic number.

It is an amenable number.

1909631097368 is a deficient number, since it is larger than the sum of its proper divisors (1860881081032).

1909631097368 is a wasteful number, since it uses less digits than its factorization.

1909631097368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95215091 (or 95215087 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 62.

The spelling of 1909631097368 in words is "one trillion, nine hundred nine billion, six hundred thirty-one million, ninety-seven thousand, three hundred sixty-eight".