364747001561 has 2 divisors, whose sum is σ = 364747001562. Its totient is φ = 364747001560.

The previous prime is 364747001557. The next prime is 364747001617. The reversal of 364747001561 is 165100747463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197593585225 + 167153416336 = 444515^2 + 408844^2 .

It is an emirp because it is prime and its reverse (165100747463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 364747001561 - 2² = 364747001557 is a prime.

It is not a weakly prime, because it can be changed into another prime (364747001261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182373500780 + 182373500781.

It is an arithmetic number, because the mean of its divisors is an integer number (182373500781).

Almost surely, 2^364747001561 is an apocalyptic number.

It is an amenable number.

364747001561 is a deficient number, since it is larger than the sum of its proper divisors (1).

364747001561 is an equidigital number, since it uses as much as digits as its factorization.

364747001561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 364747001561 in words is "three hundred sixty-four billion, seven hundred forty-seven million, one thousand, five hundred sixty-one".