53086697687 has 2 divisors, whose sum is σ = 53086697688. Its totient is φ = 53086697686.

The previous prime is 53086697669. The next prime is 53086697717. The reversal of 53086697687 is 78679668035.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53086697687 - 2¹² = 53086693591 is a prime.

It is a super-2 number, since 2×53086697687² (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 (53086697087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26543348843 + 26543348844.

It is an arithmetic number, because the mean of its divisors is an integer number (26543348844).

Almost surely, 2^53086697687 is an apocalyptic number.

53086697687 is a deficient number, since it is larger than the sum of its proper divisors (1).

53086697687 is an equidigital number, since it uses as much as digits as its factorization.

53086697687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 53086697687 in words is "fifty-three billion, eighty-six million, six hundred ninety-seven thousand, six hundred eighty-seven".