742168811 has 4 divisors (see below), whose sum is σ = 742399800. Its totient is φ = 741937824.

The previous prime is 742168793. The next prime is 742168831. The reversal of 742168811 is 118861247.

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 742168811 - 2¹⁰ = 742167787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742168831) 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, 110606 + ... + 117123.

It is an arithmetic number, because the mean of its divisors is an integer number (185599950).

Almost surely, 2^742168811 is an apocalyptic number.

742168811 is a deficient number, since it is larger than the sum of its proper divisors (230989).

742168811 is a wasteful number, since it uses less digits than its factorization.

742168811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230988.

The product of its digits is 21504, while the sum is 38.

The square root of 742168811 is about 27242.7753909179. The cubic root of 742168811 is about 905.3869557959.

The spelling of 742168811 in words is "seven hundred forty-two million, one hundred sixty-eight thousand, eight hundred eleven".