3865142220632 has 128 divisors (see below), whose sum is σ = 10070412480000. Its totient is φ = 1342721525760.

The previous prime is 3865142220623. The next prime is 3865142220637. The reversal of 3865142220632 is 2360222415683.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865142220637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9514007 + ... + 9911942.

It is an arithmetic number, because the mean of its divisors is an integer number (78675097500).

Almost surely, 2^{3865142220632} is an apocalyptic number.

It is an amenable number.

3865142220632 is an abundant number, since it is smaller than the sum of its proper divisors (6205270259368).

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

3865142220632 is a wasteful number, since it uses less digits than its factorization.

3865142220632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19426009 (or 19426005 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 3865142220632 in words is "three trillion, eight hundred sixty-five billion, one hundred forty-two million, two hundred twenty thousand, six hundred thirty-two".