513241178409187 has 2 divisors, whose sum is σ = 513241178409188. Its totient is φ = 513241178409186.

The previous prime is 513241178409131. The next prime is 513241178409233. The reversal of 513241178409187 is 781904871142315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513241178409187 - 2⁷ = 513241178409059 is a prime.

It is not a weakly prime, because it can be changed into another prime (513241178409887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256620589204593 + 256620589204594.

It is an arithmetic number, because the mean of its divisors is an integer number (256620589204594).

Almost surely, 2^{513241178409187} is an apocalyptic number.

513241178409187 is a deficient number, since it is larger than the sum of its proper divisors (1).

513241178409187 is an equidigital number, since it uses as much as digits as its factorization.

513241178409187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 513241178409187 in words is "five hundred thirteen trillion, two hundred forty-one billion, one hundred seventy-eight million, four hundred nine thousand, one hundred eighty-seven".