73920000001 has 4 divisors (see below), whose sum is σ = 74347283412. Its totient is φ = 73492716592.

The previous prime is 73919999983. The next prime is 73920000097. The reversal of 73920000001 is 10000002937.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49506250000 + 24413750001 = 222500^2 + 156249^2 .

It is a cyclic number.

It is not a de Polignac number, because 73920000001 - 2¹³ = 73919991809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73920000601) 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, 213641446 + ... + 213641791.

It is an arithmetic number, because the mean of its divisors is an integer number (18586820853).

Almost surely, 2^73920000001 is an apocalyptic number.

It is an amenable number.

73920000001 is a deficient number, since it is larger than the sum of its proper divisors (427283411).

73920000001 is a wasteful number, since it uses less digits than its factorization.

73920000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427283410.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 73920000001 its reverse (10000002937), we get a palindrome (83920002938).

The spelling of 73920000001 in words is "seventy-three billion, nine hundred twenty million, one", and thus it is an aban number.