3867813389052 has 144 divisors (see below), whose sum is σ = 10220465848320. Its totient is φ = 1230993460224.

The previous prime is 3867813389051. The next prime is 3867813389053. The reversal of 3867813389052 is 2509833187683.

3867813389052 is a `hidden beast` number, since 38 + 67 + 81 + 338 + 90 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (3867813389051) and next prime (3867813389053).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867813389051) 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, 2047544524 + ... + 2047546412.

It is an arithmetic number, because the mean of its divisors is an integer number (70975457280).

Almost surely, 2^{3867813389052} 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 3867813389052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5110232924160).

3867813389052 is an abundant number, since it is smaller than the sum of its proper divisors (6352652459268).

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

3867813389052 is a wasteful number, since it uses less digits than its factorization.

3867813389052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072 (or 5067 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 3867813389052 in words is "three trillion, eight hundred sixty-seven billion, eight hundred thirteen million, three hundred eighty-nine thousand, fifty-two".