13488736735021 has 2 divisors, whose sum is σ = 13488736735022. Its totient is φ = 13488736735020.

The previous prime is 13488736734997. The next prime is 13488736735081. The reversal of 13488736735021 is 12053763788431.

13488736735021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7184871172521 + 6303865562500 = 2680461^2 + 2510750^2 .

It is a cyclic number.

It is not a de Polignac number, because 13488736735021 - 2¹⁵ = 13488736702253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13488736735081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6744368367510 + 6744368367511.

It is an arithmetic number, because the mean of its divisors is an integer number (6744368367511).

Almost surely, 2^{13488736735021} is an apocalyptic number.

It is an amenable number.

13488736735021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13488736735021 is an equidigital number, since it uses as much as digits as its factorization.

13488736735021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 13488736735021 in words is "thirteen trillion, four hundred eighty-eight billion, seven hundred thirty-six million, seven hundred thirty-five thousand, twenty-one".