381640069340976 has 40 divisors (see below), whose sum is σ = 985904240580160. Its totient is φ = 127213262496576.

The previous prime is 381640069340941. The next prime is 381640069340977. The reversal of 381640069340976 is 679043960046183.

It is not an unprimeable number, because it can be changed into a prime (381640069340977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99789135 + ... + 103542993.

It is an arithmetic number, because the mean of its divisors is an integer number (24647606014504).

Almost surely, 2^{381640069340976} is an apocalyptic number.

It is an amenable number.

381640069340976 is an abundant number, since it is smaller than the sum of its proper divisors (604264171239184).

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

381640069340976 is a wasteful number, since it uses less digits than its factorization.

381640069340976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871913 (or 5871907 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 66.

The spelling of 381640069340976 in words is "three hundred eighty-one trillion, six hundred forty billion, sixty-nine million, three hundred forty thousand, nine hundred seventy-six".