53818188877 has 2 divisors, whose sum is σ = 53818188878. Its totient is φ = 53818188876.

The previous prime is 53818188859. The next prime is 53818188899. The reversal of 53818188877 is 77888181835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38230416676 + 15587772201 = 195526^2 + 124851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53818188877 is a prime.

It is a super-2 number, since 2×53818188877² (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 (53818188847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26909094438 + 26909094439.

It is an arithmetic number, because the mean of its divisors is an integer number (26909094439).

Almost surely, 2^53818188877 is an apocalyptic number.

It is an amenable number.

53818188877 is a deficient number, since it is larger than the sum of its proper divisors (1).

53818188877 is an equidigital number, since it uses as much as digits as its factorization.

53818188877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24084480, while the sum is 64.

The spelling of 53818188877 in words is "fifty-three billion, eight hundred eighteen million, one hundred eighty-eight thousand, eight hundred seventy-seven".