381387450147 has 16 divisors (see below), whose sum is σ = 587377464192. Its totient is φ = 217547208320.

The previous prime is 381387450139. The next prime is 381387450193. The reversal of 381387450147 is 741054783183.

381387450147 is digitally balanced in base 4, 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 381387450147 - 2³ = 381387450139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 381387450147.

It is not an unprimeable number, because it can be changed into a prime (381387450047) 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, 339916953 + ... + 339918074.

It is an arithmetic number, because the mean of its divisors is an integer number (36711091512).

Almost surely, 2^381387450147 is an apocalyptic number.

381387450147 is a deficient number, since it is larger than the sum of its proper divisors (205990014045).

381387450147 is a wasteful number, since it uses less digits than its factorization.

381387450147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679835058.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 381387450147 in words is "three hundred eighty-one billion, three hundred eighty-seven million, four hundred fifty thousand, one hundred forty-seven".