1339963899552 has 240 divisors, whose sum is σ = 4185814608360. Its totient is φ = 419050340352.

The previous prime is 1339963899511. The next prime is 1339963899557. The reversal of 1339963899552 is 2559983699331.

1339963899552 is a `hidden beast` number, since 1 + 3 + 3 + 9 + 9 + 63 + 8 + 9 + 9 + 552 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1158559460496 + 181404439056 = 1076364^2 + 425916^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (1339963899557) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13920324 + ... + 14016252.

Almost surely, 2^{1339963899552} is an apocalyptic number.

1339963899552 is a gapful number since it is divisible by the number (12) 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 1339963899552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2092907304180).

1339963899552 is an abundant number, since it is smaller than the sum of its proper divisors (2845850708808).

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

1339963899552 is a wasteful number, since it uses less digits than its factorization.

1339963899552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96285 (or 96268 counting only the distinct ones).

The product of its digits is 425152800, while the sum is 72.

The spelling of 1339963899552 in words is "one trillion, three hundred thirty-nine billion, nine hundred sixty-three million, eight hundred ninety-nine thousand, five hundred fifty-two".