3540540742538 has 8 divisors (see below), whose sum is σ = 5310967136580. Its totient is φ = 1770218363680.

The previous prime is 3540540742513. The next prime is 3540540742561. The reversal of 3540540742538 is 8352470450453.

It can be written as a sum of positive squares in 2 ways, for example, as 3537231847009 + 3308895529 = 1880753^2 + 57523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25918643 + ... + 26054886.

Almost surely, 2^{3540540742538} is an apocalyptic number.

3540540742538 is a deficient number, since it is larger than the sum of its proper divisors (1770426394042).

3540540742538 is a wasteful number, since it uses less digits than its factorization.

3540540742538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52007592.

The product of its (nonzero) digits is 8064000, while the sum is 50.

The spelling of 3540540742538 in words is "three trillion, five hundred forty billion, five hundred forty million, seven hundred forty-two thousand, five hundred thirty-eight".