1428337780540 has 192 divisors, whose sum is σ = 3480582389760. Its totient is φ = 486902672640.

The previous prime is 1428337780501. The next prime is 1428337780543. The reversal of 1428337780540 is 450877338241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428337780543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 647184117 + ... + 647186323.

It is an arithmetic number, because the mean of its divisors is an integer number (18128033280).

Almost surely, 2^{1428337780540} is an apocalyptic number.

1428337780540 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 1428337780540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1740291194880).

1428337780540 is an abundant number, since it is smaller than the sum of its proper divisors (2052244609220).

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

1428337780540 is a wasteful number, since it uses less digits than its factorization.

1428337780540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 1428337780540 in words is "one trillion, four hundred twenty-eight billion, three hundred thirty-seven million, seven hundred eighty thousand, five hundred forty".