361186993841 has 4 divisors (see below), whose sum is σ = 362340946212. Its totient is φ = 360033041472.

The previous prime is 361186993813. The next prime is 361186993859. The reversal of 361186993841 is 148399681163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148399681163 = 291481 ⋅509123.

It can be written as a sum of positive squares in 2 ways, for example, as 156796200625 + 204390793216 = 395975^2 + 452096^2 .

It is a cyclic number.

It is not a de Polignac number, because 361186993841 - 2¹⁴ = 361186977457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361186993891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576975716 + ... + 576976341.

It is an arithmetic number, because the mean of its divisors is an integer number (90585236553).

Almost surely, 2^361186993841 is an apocalyptic number.

It is an amenable number.

361186993841 is a deficient number, since it is larger than the sum of its proper divisors (1153952371).

361186993841 is a wasteful number, since it uses less digits than its factorization.

361186993841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153952370.

The product of its digits is 6718464, while the sum is 59.

The spelling of 361186993841 in words is "three hundred sixty-one billion, one hundred eighty-six million, nine hundred ninety-three thousand, eight hundred forty-one".