742180811 has 4 divisors (see below), whose sum is σ = 760282824. Its totient is φ = 724078800.

The previous prime is 742180787. The next prime is 742180819. The reversal of 742180811 is 118081247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118081247 = 1459 ⋅80933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742180811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742180819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9050945 + ... + 9051026.

It is an arithmetic number, because the mean of its divisors is an integer number (190070706).

Almost surely, 2^742180811 is an apocalyptic number.

742180811 is a deficient number, since it is larger than the sum of its proper divisors (18102013).

742180811 is a wasteful number, since it uses less digits than its factorization.

742180811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18102012.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 742180811 is about 27242.9956319051. The cubic root of 742180811 is about 905.3918354516.

The spelling of 742180811 in words is "seven hundred forty-two million, one hundred eighty thousand, eight hundred eleven".