53936413887469 has 2 divisors, whose sum is σ = 53936413887470. Its totient is φ = 53936413887468.

The previous prime is 53936413887443. The next prime is 53936413887479. The reversal of 53936413887469 is 96478831463935.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53184742227369 + 751671660100 = 7292787^2 + 866990^2 .

It is a cyclic number.

It is not a de Polignac number, because 53936413887469 - 2⁵ = 53936413887437 is a prime.

It is a super-2 number, since 2×53936413887469² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53936413887395 and 53936413887404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53936413887479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26968206943734 + 26968206943735.

It is an arithmetic number, because the mean of its divisors is an integer number (26968206943735).

Almost surely, 2^{53936413887469} is an apocalyptic number.

It is an amenable number.

53936413887469 is a deficient number, since it is larger than the sum of its proper divisors (1).

53936413887469 is an equidigital number, since it uses as much as digits as its factorization.

53936413887469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2821754880, while the sum is 76.

The spelling of 53936413887469 in words is "fifty-three trillion, nine hundred thirty-six billion, four hundred thirteen million, eight hundred eighty-seven thousand, four hundred sixty-nine".