381047004643 has 4 divisors (see below), whose sum is σ = 382145123160. Its totient is φ = 379948886128.

The previous prime is 381047004593. The next prime is 381047004649. The reversal of 381047004643 is 346400740183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381047004643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381047004596 and 381047004605.

It is not an unprimeable number, because it can be changed into a prime (381047004649) 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, 549058738 + ... + 549059431.

It is an arithmetic number, because the mean of its divisors is an integer number (95536280790).

Almost surely, 2^381047004643 is an apocalyptic number.

381047004643 is a deficient number, since it is larger than the sum of its proper divisors (1098118517).

381047004643 is a wasteful number, since it uses less digits than its factorization.

381047004643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098118516.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 381047004643 in words is "three hundred eighty-one billion, forty-seven million, four thousand, six hundred forty-three".