3811383775550 has 48 divisors (see below), whose sum is σ = 7666438691520. Its totient is φ = 1401391904640.

The previous prime is 3811383775543. The next prime is 3811383775559. The reversal of 3811383775550 is 555773831183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3811383775559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12111737 + ... + 12422436.

It is an arithmetic number, because the mean of its divisors is an integer number (159717472740).

Almost surely, 2^{3811383775550} is an apocalyptic number.

3811383775550 is an abundant number, since it is smaller than the sum of its proper divisors (3855054915970).

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

3811383775550 is a wasteful number, since it uses less digits than its factorization.

3811383775550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24534437 (or 24534432 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 3811383775550 in words is "three trillion, eight hundred eleven billion, three hundred eighty-three million, seven hundred seventy-five thousand, five hundred fifty".