381993680703 has 4 divisors (see below), whose sum is σ = 509324907608. Its totient is φ = 254662453800.

The previous prime is 381993680657. The next prime is 381993680737. The reversal of 381993680703 is 307086399183.

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

It is a de Polignac number, because none of the positive numbers 2^k-381993680703 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 (381993681703) 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, 63665613448 + ... + 63665613453.

It is an arithmetic number, because the mean of its divisors is an integer number (127331226902).

Almost surely, 2^381993680703 is an apocalyptic number.

381993680703 is a deficient number, since it is larger than the sum of its proper divisors (127331226905).

381993680703 is a wasteful number, since it uses less digits than its factorization.

381993680703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127331226904.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 381993680703 in words is "three hundred eighty-one billion, nine hundred ninety-three million, six hundred eighty thousand, seven hundred three".