381544375703 has 4 divisors (see below), whose sum is σ = 390850336128. Its totient is φ = 372238415280.

The previous prime is 381544375657. The next prime is 381544375717. The reversal of 381544375703 is 307573445183.

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

It is a cyclic number.

It is not a de Polignac number, because 381544375703 - 2²⁶ = 381477266839 is a prime.

It is a super-2 number, since 2×381544375703² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381544375103) 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, 4652980151 + ... + 4652980232.

It is an arithmetic number, because the mean of its divisors is an integer number (97712584032).

Almost surely, 2^381544375703 is an apocalyptic number.

381544375703 is a deficient number, since it is larger than the sum of its proper divisors (9305960425).

381544375703 is an equidigital number, since it uses as much as digits as its factorization.

381544375703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305960424.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 381544375703 in words is "three hundred eighty-one billion, five hundred forty-four million, three hundred seventy-five thousand, seven hundred three".