38281573387 has 2 divisors, whose sum is σ = 38281573388. Its totient is φ = 38281573386.

The previous prime is 38281573373. The next prime is 38281573409. The reversal of 38281573387 is 78337518283.

It is a weak prime.

It is an emirp because it is prime and its reverse (78337518283) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38281573387 is a prime.

It is not a weakly prime, because it can be changed into another prime (38281573087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19140786693 + 19140786694.

It is an arithmetic number, because the mean of its divisors is an integer number (19140786694).

Almost surely, 2^38281573387 is an apocalyptic number.

38281573387 is a deficient number, since it is larger than the sum of its proper divisors (1).

38281573387 is an equidigital number, since it uses as much as digits as its factorization.

38281573387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 55.

The spelling of 38281573387 in words is "thirty-eight billion, two hundred eighty-one million, five hundred seventy-three thousand, three hundred eighty-seven".