381073707447 has 4 divisors (see below), whose sum is σ = 508098276600. Its totient is φ = 254049138296.

The previous prime is 381073707437. The next prime is 381073707451. The reversal of 381073707447 is 744707370183.

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 381073707447 - 2⁶ = 381073707383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381073707447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381073707437) 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, 63512284572 + ... + 63512284577.

It is an arithmetic number, because the mean of its divisors is an integer number (127024569150).

Almost surely, 2^381073707447 is an apocalyptic number.

381073707447 is a deficient number, since it is larger than the sum of its proper divisors (127024569153).

381073707447 is a wasteful number, since it uses less digits than its factorization.

381073707447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127024569152.

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 381073707447 in words is "three hundred eighty-one billion, seventy-three million, seven hundred seven thousand, four hundred forty-seven".