73237873237 has 4 divisors (see below), whose sum is σ = 73992902956. Its totient is φ = 72482843520.

The previous prime is 73237873153. The next prime is 73237873243.

73237873237 is nontrivially palindromic in base 10.

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 26605198321 + 46632674916 = 163111^2 + 215946^2 .

It is a cyclic number.

It is not a de Polignac number, because 73237873237 - 2⁷ = 73237873109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73237873277) 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, 377514714 + ... + 377514907.

It is an arithmetic number, because the mean of its divisors is an integer number (18498225739).

Almost surely, 2^73237873237 is an apocalyptic number.

It is an amenable number.

73237873237 is a deficient number, since it is larger than the sum of its proper divisors (755029719).

73237873237 is an equidigital number, since it uses as much as digits as its factorization.

73237873237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755029718.

The product of its digits is 6223392, while the sum is 52.

The spelling of 73237873237 in words is "seventy-three billion, two hundred thirty-seven million, eight hundred seventy-three thousand, two hundred thirty-seven".