5403871638 has 32 divisors (see below), whose sum is σ = 13100296320. Its totient is φ = 1637536680.

The previous prime is 5403871631. The next prime is 5403871663. The reversal of 5403871638 is 8361783045.

5403871638 is a `hidden beast` number, since 5 + 4 + 0 + 3 + 8 + 7 + 1 + 638 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5403871593 and 5403871602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5403871631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4548120 + ... + 4549307.

It is an arithmetic number, because the mean of its divisors is an integer number (409384260).

Almost surely, 2^5403871638 is an apocalyptic number.

5403871638 is an abundant number, since it is smaller than the sum of its proper divisors (7696424682).

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

5403871638 is a wasteful number, since it uses less digits than its factorization.

5403871638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097449 (or 9097443 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 5403871638 is about 73511.0307232867. The cubic root of 5403871638 is about 1754.8298293619.

The spelling of 5403871638 in words is "five billion, four hundred three million, eight hundred seventy-one thousand, six hundred thirty-eight".