187551080513 has 2 divisors, whose sum is σ = 187551080514. Its totient is φ = 187551080512.

The previous prime is 187551080471. The next prime is 187551080527. The reversal of 187551080513 is 315080155781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129767093824 + 57783986689 = 360232^2 + 240383^2 .

It is an emirp because it is prime and its reverse (315080155781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 187551080513 - 2¹² = 187551076417 is a prime.

It is not a weakly prime, because it can be changed into another prime (187551080533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93775540256 + 93775540257.

It is an arithmetic number, because the mean of its divisors is an integer number (93775540257).

Almost surely, 2^187551080513 is an apocalyptic number.

It is an amenable number.

187551080513 is a deficient number, since it is larger than the sum of its proper divisors (1).

187551080513 is an equidigital number, since it uses as much as digits as its factorization.

187551080513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 44.

The spelling of 187551080513 in words is "one hundred eighty-seven billion, five hundred fifty-one million, eighty thousand, five hundred thirteen".