1339990986256 has 80 divisors (see below), whose sum is σ = 2842902042624. Its totient is φ = 608156301312.

The previous prime is 1339990986253. The next prime is 1339990986259. The reversal of 1339990986256 is 6526890999331.

It is an interprime number because it is at equal distance from previous prime (1339990986253) and next prime (1339990986259).

It is not an unprimeable number, because it can be changed into a prime (1339990986253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2760555 + ... + 3209461.

Almost surely, 2^{1339990986256} is an apocalyptic number.

1339990986256 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 1339990986256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1421451021312).

1339990986256 is an abundant number, since it is smaller than the sum of its proper divisors (1502911056368).

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

1339990986256 is a wasteful number, since it uses less digits than its factorization.

1339990986256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449168 (or 449162 counting only the distinct ones).

The product of its (nonzero) digits is 170061120, while the sum is 70.

The spelling of 1339990986256 in words is "one trillion, three hundred thirty-nine billion, nine hundred ninety million, nine hundred eighty-six thousand, two hundred fifty-six".