53138968423 has 2 divisors, whose sum is σ = 53138968424. Its totient is φ = 53138968422.

The previous prime is 53138968397. The next prime is 53138968427. The reversal of 53138968423 is 32486983135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53138968423 - 2¹⁷ = 53138837351 is a prime.

It is a super-2 number, since 2×53138968423² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53138968427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26569484211 + 26569484212.

It is an arithmetic number, because the mean of its divisors is an integer number (26569484212).

Almost surely, 2^53138968423 is an apocalyptic number.

53138968423 is a deficient number, since it is larger than the sum of its proper divisors (1).

53138968423 is an equidigital number, since it uses as much as digits as its factorization.

53138968423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 52.

The spelling of 53138968423 in words is "fifty-three billion, one hundred thirty-eight million, nine hundred sixty-eight thousand, four hundred twenty-three".