540646857749 has 8 divisors (see below), whose sum is σ = 544310236800. Its totient is φ = 536983944016.

The previous prime is 540646857743. The next prime is 540646857799. The reversal of 540646857749 is 947758646045.

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

It is a cyclic number.

It is not a de Polignac number, because 540646857749 - 2⁸ = 540646857493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540646857743) 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, 2398784 + ... + 2614470.

It is an arithmetic number, because the mean of its divisors is an integer number (68038779600).

Almost surely, 2^540646857749 is an apocalyptic number.

It is an amenable number.

540646857749 is a deficient number, since it is larger than the sum of its proper divisors (3663379051).

540646857749 is a wasteful number, since it uses less digits than its factorization.

540646857749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232659.

The product of its (nonzero) digits is 203212800, while the sum is 65.

The spelling of 540646857749 in words is "five hundred forty billion, six hundred forty-six million, eight hundred fifty-seven thousand, seven hundred forty-nine".