8381380051 has 16 divisors (see below), whose sum is σ = 9325342080. Its totient is φ = 7468506880.

The previous prime is 8381380031. The next prime is 8381380057. The reversal of 8381380051 is 1500831838.

8381380051 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8381380051 - 2¹⁵ = 8381347283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8381380057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206595 + ... + 243811.

It is an arithmetic number, because the mean of its divisors is an integer number (582833880).

Almost surely, 2^8381380051 is an apocalyptic number.

8381380051 is a deficient number, since it is larger than the sum of its proper divisors (943962029).

8381380051 is a wasteful number, since it uses less digits than its factorization.

8381380051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37634.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 8381380051 is about 91549.8773947841. The cubic root of 8381380051 is about 2031.2895986145.

The spelling of 8381380051 in words is "eight billion, three hundred eighty-one million, three hundred eighty thousand, fifty-one".