1038909693660 has 24 divisors (see below), whose sum is σ = 2908947142416. Its totient is φ = 277042584960.

The previous prime is 1038909693631. The next prime is 1038909693721. The reversal of 1038909693660 is 663969098301.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 17315161561 = 1038909693660 / (1 + 0 + 3 + 8 + 9 + 0 + 9 + 6 + 9 + 3 + 6 + 6 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1038909693594 and 1038909693603.

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, 8657580721 + ... + 8657580840.

It is an arithmetic number, because the mean of its divisors is an integer number (121206130934).

Almost surely, 2^{1038909693660} is an apocalyptic number.

1038909693660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1038909693660 is an abundant number, since it is smaller than the sum of its proper divisors (1870037448756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1038909693660 is a wasteful number, since it uses less digits than its factorization.

1038909693660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17315161573 (or 17315161571 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 60.

The spelling of 1038909693660 in words is "one trillion, thirty-eight billion, nine hundred nine million, six hundred ninety-three thousand, six hundred sixty".