542796849691 has 4 divisors (see below), whose sum is σ = 542801294152. Its totient is φ = 542792405232.

The previous prime is 542796849689. The next prime is 542796849709. The reversal of 542796849691 is 196948697245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542796849691 - 2¹ = 542796849689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542796849691.

It is not an unprimeable number, because it can be changed into a prime (542796849601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033706 + ... + 2285071.

It is an arithmetic number, because the mean of its divisors is an integer number (135700323538).

Almost surely, 2^542796849691 is an apocalyptic number.

542796849691 is a deficient number, since it is larger than the sum of its proper divisors (4444461).

542796849691 is a wasteful number, since it uses less digits than its factorization.

542796849691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444460.

The product of its digits is 235146240, while the sum is 70.

The spelling of 542796849691 in words is "five hundred forty-two billion, seven hundred ninety-six million, eight hundred forty-nine thousand, six hundred ninety-one".