1337978699868 has 288 divisors, whose sum is σ = 3550119741504. Its totient is φ = 390731268096.

The previous prime is 1337978699861. The next prime is 1337978699899. The reversal of 1337978699868 is 8689968797331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1337978699861) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1121523880 + ... + 1121525072.

It is an arithmetic number, because the mean of its divisors is an integer number (12326804658).

Almost surely, 2^{1337978699868} 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 1337978699868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775059870752).

1337978699868 is an abundant number, since it is smaller than the sum of its proper divisors (2212141041636).

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

1337978699868 is a wasteful number, since it uses less digits than its factorization.

1337978699868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1488 counting only the distinct ones).

The product of its digits is 5925685248, while the sum is 84.

The spelling of 1337978699868 in words is "one trillion, three hundred thirty-seven billion, nine hundred seventy-eight million, six hundred ninety-nine thousand, eight hundred sixty-eight".