3877742322612 has 72 divisors (see below), whose sum is σ = 9953570410056. Its totient is φ = 1272664203264.

The previous prime is 3877742322611. The next prime is 3877742322617. The reversal of 3877742322612 is 2162232477783.

3877742322612 is a `hidden beast` number, since 3 + 87 + 7 + 74 + 232 + 261 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 910928989476 + 2966813333136 = 954426^2 + 1722444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3877742322611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237718 + ... + 2794994.

It is an arithmetic number, because the mean of its divisors is an integer number (138244033473).

Almost surely, 2^{3877742322612} 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 3877742322612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4976785205028).

3877742322612 is an abundant number, since it is smaller than the sum of its proper divisors (6075828087444).

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

3877742322612 is a wasteful number, since it uses less digits than its factorization.

3877742322612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557937 (or 2557932 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 54.

The spelling of 3877742322612 in words is "three trillion, eight hundred seventy-seven billion, seven hundred forty-two million, three hundred twenty-two thousand, six hundred twelve".