37061743561 has 2 divisors, whose sum is σ = 37061743562. Its totient is φ = 37061743560.

The previous prime is 37061743513. The next prime is 37061743567. The reversal of 37061743561 is 16534716073.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26294568336 + 10767175225 = 162156^2 + 103765^2 .

It is a cyclic number.

It is not a de Polignac number, because 37061743561 - 2⁹ = 37061743049 is a prime.

It is not a weakly prime, because it can be changed into another prime (37061743567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18530871780 + 18530871781.

It is an arithmetic number, because the mean of its divisors is an integer number (18530871781).

Almost surely, 2^37061743561 is an apocalyptic number.

It is an amenable number.

37061743561 is a deficient number, since it is larger than the sum of its proper divisors (1).

37061743561 is an equidigital number, since it uses as much as digits as its factorization.

37061743561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 37061743561 in words is "thirty-seven billion, sixty-one million, seven hundred forty-three thousand, five hundred sixty-one".