381307081996 has 24 divisors (see below), whose sum is σ = 676187507520. Its totient is φ = 188113890432.

The previous prime is 381307081957. The next prime is 381307081999. The reversal of 381307081996 is 699180703183.

It is not an unprimeable number, because it can be changed into a prime (381307081999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67680 + ... + 875896.

It is an arithmetic number, because the mean of its divisors is an integer number (28174479480).

Almost surely, 2^381307081996 is an apocalyptic number.

It is an amenable number.

381307081996 is a deficient number, since it is larger than the sum of its proper divisors (294880425524).

381307081996 is a wasteful number, since it uses less digits than its factorization.

381307081996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809793 (or 809791 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 381307081996 in words is "three hundred eighty-one billion, three hundred seven million, eighty-one thousand, nine hundred ninety-six".