187752113513 has 2 divisors, whose sum is σ = 187752113514. Its totient is φ = 187752113512.

The previous prime is 187752113447. The next prime is 187752113537. The reversal of 187752113513 is 315311257781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161304247129 + 26447866384 = 401627^2 + 162628^2 .

It is a cyclic number.

It is not a de Polignac number, because 187752113513 - 2¹² = 187752109417 is a prime.

It is a super-2 number, since 2×187752113513² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (187752113713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93876056756 + 93876056757.

It is an arithmetic number, because the mean of its divisors is an integer number (93876056757).

Almost surely, 2^187752113513 is an apocalyptic number.

It is an amenable number.

187752113513 is a deficient number, since it is larger than the sum of its proper divisors (1).

187752113513 is an equidigital number, since it uses as much as digits as its factorization.

187752113513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 44.

The spelling of 187752113513 in words is "one hundred eighty-seven billion, seven hundred fifty-two million, one hundred thirteen thousand, five hundred thirteen".