549142282691 has 8 divisors (see below), whose sum is σ = 557377142784. Its totient is φ = 540908561160.

The previous prime is 549142282669. The next prime is 549142282697. The reversal of 549142282691 is 196282241945.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549142282691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549142282697) 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, 713246 + ... + 1267676.

It is an arithmetic number, because the mean of its divisors is an integer number (69672142848).

Almost surely, 2^549142282691 is an apocalyptic number.

549142282691 is a deficient number, since it is larger than the sum of its proper divisors (8234860093).

549142282691 is a wasteful number, since it uses less digits than its factorization.

549142282691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569281.

The product of its digits is 2488320, while the sum is 53.

The spelling of 549142282691 in words is "five hundred forty-nine billion, one hundred forty-two million, two hundred eighty-two thousand, six hundred ninety-one".