3561136990501 has 2 divisors, whose sum is σ = 3561136990502. Its totient is φ = 3561136990500.

The previous prime is 3561136990429. The next prime is 3561136990577. The reversal of 3561136990501 is 1050996311653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2828484876100 + 732652114401 = 1681810^2 + 855951^2 .

It is a cyclic number.

It is not a de Polignac number, because 3561136990501 - 2¹³ = 3561136982309 is a prime.

It is a super-2 number, since 2×3561136990501² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3561136993501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780568495250 + 1780568495251.

It is an arithmetic number, because the mean of its divisors is an integer number (1780568495251).

Almost surely, 2^{3561136990501} is an apocalyptic number.

It is an amenable number.

3561136990501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561136990501 is an equidigital number, since it uses as much as digits as its factorization.

3561136990501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 656100, while the sum is 49.

The spelling of 3561136990501 in words is "three trillion, five hundred sixty-one billion, one hundred thirty-six million, nine hundred ninety thousand, five hundred one".