7538372738357 has 4 divisors (see below), whose sum is σ = 7538380422540. Its totient is φ = 7538365054176.

The previous prime is 7538372738353. The next prime is 7538372738363.

7538372738357 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2909102060881 + 4629270677476 = 1705609^2 + 2151574^2 .

It is a cyclic number.

It is not a de Polignac number, because 7538372738357 - 2² = 7538372738353 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 (7538372738353) 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, 2110382 + ... + 4419327.

It is an arithmetic number, because the mean of its divisors is an integer number (1884595105635).

Almost surely, 2^{7538372738357} is an apocalyptic number.

It is an amenable number.

7538372738357 is a deficient number, since it is larger than the sum of its proper divisors (7684183).

7538372738357 is a wasteful number, since it uses less digits than its factorization.

7538372738357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7684182.

The product of its digits is 622339200, while the sum is 68.

The spelling of 7538372738357 in words is "seven trillion, five hundred thirty-eight billion, three hundred seventy-two million, seven hundred thirty-eight thousand, three hundred fifty-seven".