381450148487 has 2 divisors, whose sum is σ = 381450148488. Its totient is φ = 381450148486.

The previous prime is 381450148463. The next prime is 381450148517. The reversal of 381450148487 is 784841054183.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381450148487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381450148447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190725074243 + 190725074244.

It is an arithmetic number, because the mean of its divisors is an integer number (190725074244).

Almost surely, 2^381450148487 is an apocalyptic number.

381450148487 is a deficient number, since it is larger than the sum of its proper divisors (1).

381450148487 is an equidigital number, since it uses as much as digits as its factorization.

381450148487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 381450148487 in words is "three hundred eighty-one billion, four hundred fifty million, one hundred forty-eight thousand, four hundred eighty-seven".