37744545077 has 2 divisors, whose sum is σ = 37744545078. Its totient is φ = 37744545076.

The previous prime is 37744545061. The next prime is 37744545149. The reversal of 37744545077 is 77054544773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33104346916 + 4640198161 = 181946^2 + 68119^2 .

It is a cyclic number.

It is not a de Polignac number, because 37744545077 - 2⁴ = 37744545061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37744545017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18872272538 + 18872272539.

It is an arithmetic number, because the mean of its divisors is an integer number (18872272539).

Almost surely, 2^37744545077 is an apocalyptic number.

It is an amenable number.

37744545077 is a deficient number, since it is larger than the sum of its proper divisors (1).

37744545077 is an equidigital number, since it uses as much as digits as its factorization.

37744545077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11524800, while the sum is 53.

The spelling of 37744545077 in words is "thirty-seven billion, seven hundred forty-four million, five hundred forty-five thousand, seventy-seven".