381677524686 has 112 divisors (see below), whose sum is σ = 866364106608. Its totient is φ = 126048182400.

The previous prime is 381677524663. The next prime is 381677524769. The reversal of 381677524686 is 686425776183.

381677524686 is a `hidden beast` number, since 3 + 8 + 167 + 7 + 5 + 2 + 468 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 74152765 + ... + 74157911.

It is an arithmetic number, because the mean of its divisors is an integer number (7735393809).

Almost surely, 2^381677524686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381677524686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433182053304).

381677524686 is an abundant number, since it is smaller than the sum of its proper divisors (484686581922).

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

381677524686 is a wasteful number, since it uses less digits than its factorization.

381677524686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629 (or 5614 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 381677524686 in words is "three hundred eighty-one billion, six hundred seventy-seven million, five hundred twenty-four thousand, six hundred eighty-six".