1063868307840 has 448 divisors, whose sum is σ = 4106568972240. Its totient is φ = 261873782784.

The previous prime is 1063868307773. The next prime is 1063868307857. The reversal of 1063868307840 is 487038683601.

1063868307840 is a `hidden beast` number, since 106 + 386 + 83 + 0 + 7 + 84 + 0 = 666.

It is a super-2 number, since 2×1063868307840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5977579 + ... + 6152981.

Almost surely, 2^{1063868307840} is an apocalyptic number.

1063868307840 is a gapful number since it is divisible by the number (10) 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 1063868307840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2053284486120).

1063868307840 is an abundant number, since it is smaller than the sum of its proper divisors (3042700664400).

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

1063868307840 is an equidigital number, since it uses as much as digits as its factorization.

1063868307840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175453 (or 175426 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 1063868307840 in words is "one trillion, sixty-three billion, eight hundred sixty-eight million, three hundred seven thousand, eight hundred forty".