1368775391900 has 288 divisors, whose sum is σ = 3697963315200. Its totient is φ = 429148108800.

The previous prime is 1368775391897. The next prime is 1368775391917. The reversal of 1368775391900 is 91935778631.

It is a super-2 number, since 2×1368775391900² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1368775391900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 168626642 + ... + 168634758.

It is an arithmetic number, because the mean of its divisors is an integer number (12840150400).

Almost surely, 2^{1368775391900} is an apocalyptic number.

1368775391900 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 1368775391900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848981657600).

1368775391900 is an abundant number, since it is smaller than the sum of its proper divisors (2329187923300).

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

1368775391900 is a wasteful number, since it uses less digits than its factorization.

1368775391900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8597 (or 8590 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 59.

The spelling of 1368775391900 in words is "one trillion, three hundred sixty-eight billion, seven hundred seventy-five million, three hundred ninety-one thousand, nine hundred".