73507638353 has 4 divisors (see below), whose sum is σ = 73517332020. Its totient is φ = 73497944688.

The previous prime is 73507638343. The next prime is 73507638361. The reversal of 73507638353 is 35383670537.

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 10422776464 + 63084861889 = 102092^2 + 251167^2 .

It is a cyclic number.

It is not a de Polignac number, because 73507638353 - 2¹⁴ = 73507621969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73507638343) 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, 4835450 + ... + 4850627.

It is an arithmetic number, because the mean of its divisors is an integer number (18379333005).

Almost surely, 2^73507638353 is an apocalyptic number.

It is an amenable number.

73507638353 is a deficient number, since it is larger than the sum of its proper divisors (9693667).

73507638353 is an equidigital number, since it uses as much as digits as its factorization.

73507638353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693666.

The product of its (nonzero) digits is 4762800, while the sum is 50.

The spelling of 73507638353 in words is "seventy-three billion, five hundred seven million, six hundred thirty-eight thousand, three hundred fifty-three".