1390486844736 has 840 divisors, whose sum is σ = 5050338733440. Its totient is φ = 375646740480.

The previous prime is 1390486844731. The next prime is 1390486844743. The reversal of 1390486844736 is 6374486840931.

It is a happy number.

1390486844736 is a `hidden beast` number, since 1 + 3 + 9 + 0 + 4 + 86 + 84 + 473 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390486844731) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 202602841 + ... + 202609703.

It is an arithmetic number, because the mean of its divisors is an integer number (6012308016).

Almost surely, 2^{1390486844736} is an apocalyptic number.

1390486844736 is a gapful number since it is divisible by the number (16) 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 1390486844736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525169366720).

1390486844736 is an abundant number, since it is smaller than the sum of its proper divisors (3659851888704).

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

1390486844736 is a wasteful number, since it uses less digits than its factorization.

1390486844736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6945 (or 6915 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 63.

The spelling of 1390486844736 in words is "one trillion, three hundred ninety billion, four hundred eighty-six million, eight hundred forty-four thousand, seven hundred thirty-six".