381568652503 has 4 divisors (see below), whose sum is σ = 381726916488. Its totient is φ = 381410388520.

The previous prime is 381568652473. The next prime is 381568652513. The reversal of 381568652503 is 305256865183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381568652503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381568652513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79128376 + ... + 79133197.

It is an arithmetic number, because the mean of its divisors is an integer number (95431729122).

Almost surely, 2^381568652503 is an apocalyptic number.

381568652503 is a deficient number, since it is larger than the sum of its proper divisors (158263985).

381568652503 is a wasteful number, since it uses less digits than its factorization.

381568652503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158263984.

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 381568652503 in words is "three hundred eighty-one billion, five hundred sixty-eight million, six hundred fifty-two thousand, five hundred three".