3634406540140 has 12 divisors (see below), whose sum is σ = 7632253734336. Its totient is φ = 1453762616048.

The previous prime is 3634406540113. The next prime is 3634406540143. The reversal of 3634406540140 is 410456044363.

It is a junction number, because it is equal to n+sod(n) for n = 3634406540093 and 3634406540102.

It is not an unprimeable number, because it can be changed into a prime (3634406540143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90860163484 + ... + 90860163523.

It is an arithmetic number, because the mean of its divisors is an integer number (636021144528).

Almost surely, 2^{3634406540140} is an apocalyptic number.

It is an amenable number.

3634406540140 is an abundant number, since it is smaller than the sum of its proper divisors (3997847194196).

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

3634406540140 is a wasteful number, since it uses less digits than its factorization.

3634406540140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181720327016 (or 181720327014 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 3634406540140 in words is "three trillion, six hundred thirty-four billion, four hundred six million, five hundred forty thousand, one hundred forty".