381855597523 has 8 divisors (see below), whose sum is σ = 383571536400. Its totient is φ = 380139955200.

The previous prime is 381855597517. The next prime is 381855597553. The reversal of 381855597523 is 325795558183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381855597523 - 2²⁵ = 381822043091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381855597553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2747203 + ... + 2882851.

It is an arithmetic number, because the mean of its divisors is an integer number (47946442050).

Almost surely, 2^381855597523 is an apocalyptic number.

381855597523 is a deficient number, since it is larger than the sum of its proper divisors (1715938877).

381855597523 is a wasteful number, since it uses less digits than its factorization.

381855597523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148277.

The product of its digits is 45360000, while the sum is 61.

The spelling of 381855597523 in words is "three hundred eighty-one billion, eight hundred fifty-five million, five hundred ninety-seven thousand, five hundred twenty-three".