381656350347 has 4 divisors (see below), whose sum is σ = 508875133800. Its totient is φ = 254437566896.

The previous prime is 381656350331. The next prime is 381656350379. The reversal of 381656350347 is 743053656183.

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 381656350347 - 2⁴ = 381656350331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381656350347.

It is not an unprimeable number, because it can be changed into a prime (381656250347) 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, 63609391722 + ... + 63609391727.

It is an arithmetic number, because the mean of its divisors is an integer number (127218783450).

Almost surely, 2^381656350347 is an apocalyptic number.

381656350347 is a deficient number, since it is larger than the sum of its proper divisors (127218783453).

381656350347 is a wasteful number, since it uses less digits than its factorization.

381656350347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127218783452.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 381656350347 in words is "three hundred eighty-one billion, six hundred fifty-six million, three hundred fifty thousand, three hundred forty-seven".