381636058164 has 96 divisors (see below), whose sum is σ = 953665929216. Its totient is φ = 118364198400.

The previous prime is 381636058163. The next prime is 381636058187. The reversal of 381636058164 is 461850636183.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381636058163) 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 31 ways as a sum of consecutive naturals, for example, 7305939 + ... + 7357989.

It is an arithmetic number, because the mean of its divisors is an integer number (9934020096).

Almost surely, 2^381636058164 is an apocalyptic number.

381636058164 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381636058164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476832964608).

381636058164 is an abundant number, since it is smaller than the sum of its proper divisors (572029871052).

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

381636058164 is a wasteful number, since it uses less digits than its factorization.

381636058164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52485 (or 52483 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 381636058164 in words is "three hundred eighty-one billion, six hundred thirty-six million, fifty-eight thousand, one hundred sixty-four".