381385794986 has 16 divisors (see below), whose sum is σ = 657191811264. Its totient is φ = 162604157184.

The previous prime is 381385794983. The next prime is 381385794991. The reversal of 381385794986 is 689497583183.

It is not an unprimeable number, because it can be changed into a prime (381385794983) 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, 70572020 + ... + 70577423.

It is an arithmetic number, because the mean of its divisors is an integer number (41074488204).

Almost surely, 2^381385794986 is an apocalyptic number.

381385794986 is a deficient number, since it is larger than the sum of its proper divisors (275806016278).

381385794986 is a wasteful number, since it uses less digits than its factorization.

381385794986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141149645.

The product of its digits is 313528320, while the sum is 71.

The spelling of 381385794986 in words is "three hundred eighty-one billion, three hundred eighty-five million, seven hundred ninety-four thousand, nine hundred eighty-six".