73742034021 has 32 divisors (see below), whose sum is σ = 102174041088. Its totient is φ = 47258027520.

The previous prime is 73742034013. The next prime is 73742034073. The reversal of 73742034021 is 12043024737.

It is not a de Polignac number, because 73742034021 - 2³ = 73742034013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73742834021) 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 31 ways as a sum of consecutive naturals, for example, 8633665 + ... + 8642201.

It is an arithmetic number, because the mean of its divisors is an integer number (3192938784).

Almost surely, 2^73742034021 is an apocalyptic number.

It is an amenable number.

73742034021 is a deficient number, since it is larger than the sum of its proper divisors (28432007067).

73742034021 is a wasteful number, since it uses less digits than its factorization.

73742034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181.

The product of its (nonzero) digits is 28224, while the sum is 33.

Adding to 73742034021 its reverse (12043024737), we get a palindrome (85785058758).

The spelling of 73742034021 in words is "seventy-three billion, seven hundred forty-two million, thirty-four thousand, twenty-one".