381765744633 has 32 divisors (see below), whose sum is σ = 641056869376. Its totient is φ = 196687891008.

The previous prime is 381765744631. The next prime is 381765744643. The reversal of 381765744633 is 336447567183.

It is a happy number.

It is not a de Polignac number, because 381765744633 - 2¹ = 381765744631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381765744631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16248835 + ... + 16272312.

It is an arithmetic number, because the mean of its divisors is an integer number (20033027168).

Almost surely, 2^381765744633 is an apocalyptic number.

It is an amenable number.

381765744633 is a deficient number, since it is larger than the sum of its proper divisors (259291124743).

381765744633 is a wasteful number, since it uses less digits than its factorization.

381765744633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32521213.

The product of its digits is 30481920, while the sum is 57.

The spelling of 381765744633 in words is "three hundred eighty-one billion, seven hundred sixty-five million, seven hundred forty-four thousand, six hundred thirty-three".