13497657126538 has 16 divisors (see below), whose sum is σ = 21803993406720. Its totient is φ = 6229663407216.

The previous prime is 13497657126523. The next prime is 13497657126539. The reversal of 13497657126538 is 83562175679431.

13497657126538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×13497657126538⁴ (a number of 54 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (13497657126539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6868831 + ... + 8612557.

It is an arithmetic number, because the mean of its divisors is an integer number (1362749587920).

Almost surely, 2^{13497657126538} is an apocalyptic number.

13497657126538 is a deficient number, since it is larger than the sum of its proper divisors (8306336280182).

13497657126538 is a wasteful number, since it uses less digits than its factorization.

13497657126538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041461.

The product of its digits is 228614400, while the sum is 67.

The spelling of 13497657126538 in words is "thirteen trillion, four hundred ninety-seven billion, six hundred fifty-seven million, one hundred twenty-six thousand, five hundred thirty-eight".