5673540138 has 64 divisors (see below), whose sum is σ = 13154400000. Its totient is φ = 1597837824.

The previous prime is 5673540137. The next prime is 5673540149. The reversal of 5673540138 is 8310453765.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 5673540138.

It is not an unprimeable number, because it can be changed into a prime (5673540137) 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, 1302388 + ... + 1306736.

It is an arithmetic number, because the mean of its divisors is an integer number (205537500).

Almost surely, 2^5673540138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5673540138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6577200000).

5673540138 is an abundant number, since it is smaller than the sum of its proper divisors (7480859862).

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

5673540138 is a wasteful number, since it uses less digits than its factorization.

5673540138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 5673540138 is about 75322.9057989666. The cubic root of 5673540138 is about 1783.5476250908.

The spelling of 5673540138 in words is "five billion, six hundred seventy-three million, five hundred forty thousand, one hundred thirty-eight".