381316426820 has 48 divisors (see below), whose sum is σ = 915196278528. Its totient is φ = 130731795840.

The previous prime is 381316426783. The next prime is 381316426823. The reversal of 381316426820 is 28624613183.

It is not an unprimeable number, because it can be changed into a prime (381316426823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5282894 + ... + 5354586.

It is an arithmetic number, because the mean of its divisors is an integer number (19066589136).

Almost surely, 2^381316426820 is an apocalyptic number.

It is an amenable number.

381316426820 is an abundant number, since it is smaller than the sum of its proper divisors (533879851708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381316426820 is a wasteful number, since it uses less digits than its factorization.

381316426820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109700 (or 109698 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 381316426820 in words is "three hundred eighty-one billion, three hundred sixteen million, four hundred twenty-six thousand, eight hundred twenty".