381234038305 has 32 divisors (see below), whose sum is σ = 487546795008. Its totient is φ = 285180134400.

The previous prime is 381234038219. The next prime is 381234038323. The reversal of 381234038305 is 503830432183.

It is a de Polignac number, because none of the positive numbers 2^k-381234038305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16342600 + ... + 16365910.

It is an arithmetic number, because the mean of its divisors is an integer number (15235837344).

Almost surely, 2^381234038305 is an apocalyptic number.

It is an amenable number.

381234038305 is a deficient number, since it is larger than the sum of its proper divisors (106312756703).

381234038305 is a wasteful number, since it uses less digits than its factorization.

381234038305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24577.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 381234038305 in words is "three hundred eighty-one billion, two hundred thirty-four million, thirty-eight thousand, three hundred five".