1391119688 has 16 divisors (see below), whose sum is σ = 2980970880. Its totient is φ = 596194128.

The previous prime is 1391119679. The next prime is 1391119711. The reversal of 1391119688 is 8869111931.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12420656 + ... + 12420767.

It is an arithmetic number, because the mean of its divisors is an integer number (186310680).

Almost surely, 2^1391119688 is an apocalyptic number.

It is an amenable number.

1391119688 is an abundant number, since it is smaller than the sum of its proper divisors (1589851192).

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

1391119688 is a wasteful number, since it uses less digits than its factorization.

1391119688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24841436 (or 24841432 counting only the distinct ones).

The product of its digits is 93312, while the sum is 47.

The square root of 1391119688 is about 37297.7169274474. The cubic root of 1391119688 is about 1116.3186121120.

The spelling of 1391119688 in words is "one billion, three hundred ninety-one million, one hundred nineteen thousand, six hundred eighty-eight".