6912870136553 has 2 divisors, whose sum is σ = 6912870136554. Its totient is φ = 6912870136552.

The previous prime is 6912870136531. The next prime is 6912870136637. The reversal of 6912870136553 is 3556310782196.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5397221068864 + 1515649067689 = 2323192^2 + 1231117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6912870136553 is a prime.

It is not a weakly prime, because it can be changed into another prime (6912870136253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456435068276 + 3456435068277.

It is an arithmetic number, because the mean of its divisors is an integer number (3456435068277).

Almost surely, 2^{6912870136553} is an apocalyptic number.

It is an amenable number.

6912870136553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6912870136553 is an equidigital number, since it uses as much as digits as its factorization.

6912870136553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 6912870136553 in words is "six trillion, nine hundred twelve billion, eight hundred seventy million, one hundred thirty-six thousand, five hundred fifty-three".