383686867564 has 144 divisors (see below), whose sum is σ = 921135511296. Its totient is φ = 137461968000.

The previous prime is 383686867561. The next prime is 383686867567. The reversal of 383686867564 is 465768686383.

It is an interprime number because it is at equal distance from previous prime (383686867561) and next prime (383686867567).

It is a super-2 number, since 2×383686867564² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 383686867493 and 383686867502.

It is not an unprimeable number, because it can be changed into a prime (383686867561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7345339 + ... + 7397389.

It is an arithmetic number, because the mean of its divisors is an integer number (6396774384).

Almost surely, 2^383686867564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 383686867564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460567755648).

383686867564 is an abundant number, since it is smaller than the sum of its proper divisors (537448643732).

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

383686867564 is a wasteful number, since it uses less digits than its factorization.

383686867564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52356 (or 52347 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 70.

The spelling of 383686867564 in words is "three hundred eighty-three billion, six hundred eighty-six million, eight hundred sixty-seven thousand, five hundred sixty-four".