1389927857760 has 576 divisors, whose sum is σ = 5238097720128. Its totient is φ = 333505216512.

The previous prime is 1389927857719. The next prime is 1389927857803. The reversal of 1389927857760 is 677587299831.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155764659 + ... + 155773581.

It is an arithmetic number, because the mean of its divisors is an integer number (9093919653).

Almost surely, 2^{1389927857760} is an apocalyptic number.

1389927857760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389927857760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2619048860064).

1389927857760 is an abundant number, since it is smaller than the sum of its proper divisors (3848169862368).

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

1389927857760 is a wasteful number, since it uses less digits than its factorization.

1389927857760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9167 (or 9156 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 72.

The spelling of 1389927857760 in words is "one trillion, three hundred eighty-nine billion, nine hundred twenty-seven million, eight hundred fifty-seven thousand, seven hundred sixty".