1863503746368 has 252 divisors, whose sum is σ = 5665410039744. Its totient is φ = 540142451200.

The previous prime is 1863503746339. The next prime is 1863503746373. The reversal of 1863503746368 is 8636473053681.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12213913 + ... + 12365543.

It is an arithmetic number, because the mean of its divisors is an integer number (22481785872).

Almost surely, 2^{1863503746368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1863503746368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2832705019872).

1863503746368 is an abundant number, since it is smaller than the sum of its proper divisors (3801906293376).

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

1863503746368 is a wasteful number, since it uses less digits than its factorization.

1863503746368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151714 (or 151670 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 60.

The spelling of 1863503746368 in words is "one trillion, eight hundred sixty-three billion, five hundred three million, seven hundred forty-six thousand, three hundred sixty-eight".