53121958871 has 2 divisors, whose sum is σ = 53121958872. Its totient is φ = 53121958870.

The previous prime is 53121958837. The next prime is 53121958873. The reversal of 53121958871 is 17885912135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53121958871 - 2¹⁴ = 53121942487 is a prime.

Together with 53121958873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53121958873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560979435 + 26560979436.

It is an arithmetic number, because the mean of its divisors is an integer number (26560979436).

Almost surely, 2^53121958871 is an apocalyptic number.

53121958871 is a deficient number, since it is larger than the sum of its proper divisors (1).

53121958871 is an equidigital number, since it uses as much as digits as its factorization.

53121958871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 50.

The spelling of 53121958871 in words is "fifty-three billion, one hundred twenty-one million, nine hundred fifty-eight thousand, eight hundred seventy-one".