381086807785684 has 96 divisors (see below), whose sum is σ = 904651893847296. Its totient is φ = 135641266606080.

The previous prime is 381086807785681. The next prime is 381086807785741. The reversal of 381086807785684 is 486587708680183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381086807785681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490212259 + ... + 490989034.

It is an arithmetic number, because the mean of its divisors is an integer number (9423457227576).

Almost surely, 2^{381086807785684} is an apocalyptic number.

It is an amenable number.

381086807785684 is an abundant number, since it is smaller than the sum of its proper divisors (523565086061612).

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

381086807785684 is a wasteful number, since it uses less digits than its factorization.

381086807785684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981201425 (or 981201423 counting only the distinct ones).

The product of its (nonzero) digits is 3468165120, while the sum is 79.

The spelling of 381086807785684 in words is "three hundred eighty-one trillion, eighty-six billion, eight hundred seven million, seven hundred eighty-five thousand, six hundred eighty-four".