37221760643 has 2 divisors, whose sum is σ = 37221760644. Its totient is φ = 37221760642.

The previous prime is 37221760567. The next prime is 37221760649. The reversal of 37221760643 is 34606712273.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 37221760643 - 2¹⁶ = 37221695107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37221760643.

It is not a weakly prime, because it can be changed into another prime (37221760649) 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, 18610880321 + 18610880322.

It is an arithmetic number, because the mean of its divisors is an integer number (18610880322).

Almost surely, 2^37221760643 is an apocalyptic number.

37221760643 is a deficient number, since it is larger than the sum of its proper divisors (1).

37221760643 is an equidigital number, since it uses as much as digits as its factorization.

37221760643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 37221760643 in words is "thirty-seven billion, two hundred twenty-one million, seven hundred sixty thousand, six hundred forty-three".