1383907396512 has 192 divisors, whose sum is σ = 3754893542400. Its totient is φ = 446078760960.

The previous prime is 1383907396493. The next prime is 1383907396513. The reversal of 1383907396512 is 2156937093831.

It is a super-2 number, since 2×1383907396512² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1383907396513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187797564 + ... + 187804932.

It is an arithmetic number, because the mean of its divisors is an integer number (19556737200).

Almost surely, 2^{1383907396512} is an apocalyptic number.

1383907396512 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 1383907396512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877446771200).

1383907396512 is an abundant number, since it is smaller than the sum of its proper divisors (2370986145888).

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

1383907396512 is a wasteful number, since it uses less digits than its factorization.

1383907396512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7979 (or 7971 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 1383907396512 in words is "one trillion, three hundred eighty-three billion, nine hundred seven million, three hundred ninety-six thousand, five hundred twelve".