1268625758400 has 3780 divisors, whose sum is σ = 6471653954304. Its totient is φ = 241416806400.

The previous prime is 1268625758369. The next prime is 1268625758437. The reversal of 1268625758400 is 48575268621.

1268625758400 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 6 + 2 + 57 + 584 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3780).

It is a super-2 number, since 2×1268625758400² (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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 539 ways as a sum of consecutive naturals, for example, 9989179137 + ... + 9989179263.

Almost surely, 2^{1268625758400} is an apocalyptic number.

1268625758400 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 1268625758400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3235826977152).

1268625758400 is an abundant number, since it is smaller than the sum of its proper divisors (5203028195904).

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

1268625758400 is a wasteful number, since it uses less digits than its factorization.

1268625758400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 1268625758400 in words is "one trillion, two hundred sixty-eight billion, six hundred twenty-five million, seven hundred fifty-eight thousand, four hundred".