6540903042 has 16 divisors (see below), whose sum is σ = 13083247872. Its totient is φ = 2180060720.

The previous prime is 6540903029. The next prime is 6540903043. The reversal of 6540903042 is 2403090456.

It is a junction number, because it is equal to n+sod(n) for n = 6540902994 and 6540903012.

It is not an unprimeable number, because it can be changed into a prime (6540903043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4192 + ... + 114452.

It is an arithmetic number, because the mean of its divisors is an integer number (817702992).

Almost surely, 2^6540903042 is an apocalyptic number.

6540903042 is an abundant number, since it is smaller than the sum of its proper divisors (6542344830).

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

6540903042 is a wasteful number, since it uses less digits than its factorization.

6540903042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120153.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6540903042 is about 80875.8495596801. The cubic root of 6540903042 is about 1870.1620382527.

Adding to 6540903042 its reverse (2403090456), we get a palindrome (8943993498).

The spelling of 6540903042 in words is "six billion, five hundred forty million, nine hundred three thousand, forty-two".