840377728403460 has 384 divisors, whose sum is σ = 2915323438809600. Its totient is φ = 199550167971840.

The previous prime is 840377728403443. The next prime is 840377728403471. The reversal of 840377728403460 is 64304827773048.

840377728403460 is a `hidden beast` number, since 8 + 4 + 0 + 3 + 7 + 7 + 7 + 284 + 0 + 346 + 0 = 666.

840377728403460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 225551055 + ... + 229246665.

It is an arithmetic number, because the mean of its divisors is an integer number (7591988121900).

Almost surely, 2^{840377728403460} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840377728403460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457661719404800).

840377728403460 is an abundant number, since it is smaller than the sum of its proper divisors (2074945710406140).

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

840377728403460 is a wasteful number, since it uses less digits than its factorization.

840377728403460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696788 (or 3696780 counting only the distinct ones).

The product of its (nonzero) digits is 151732224, while the sum is 63.

The spelling of 840377728403460 in words is "eight hundred forty trillion, three hundred seventy-seven billion, seven hundred twenty-eight million, four hundred three thousand, four hundred sixty".