1356611783800 has 384 divisors, whose sum is σ = 4107687091200. Its totient is φ = 404620738560.

The previous prime is 1356611783789. The next prime is 1356611783809. The reversal of 1356611783800 is 83871166531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356611783809) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 66729237 + ... + 66749563.

It is an arithmetic number, because the mean of its divisors is an integer number (10697101800).

Almost surely, 2^{1356611783800} is an apocalyptic number.

1356611783800 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 1356611783800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2053843545600).

1356611783800 is an abundant number, since it is smaller than the sum of its proper divisors (2751075307400).

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

1356611783800 is a wasteful number, since it uses less digits than its factorization.

1356611783800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20575 (or 20566 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 1356611783800 in words is "one trillion, three hundred fifty-six billion, six hundred eleven million, seven hundred eighty-three thousand, eight hundred".