37509375961 has 2 divisors, whose sum is σ = 37509375962. Its totient is φ = 37509375960.

The previous prime is 37509375949. The next prime is 37509376027. The reversal of 37509375961 is 16957390573.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32517105625 + 4992270336 = 180325^2 + 70656^2 .

It is a cyclic number.

It is not a de Polignac number, because 37509375961 - 2⁷ = 37509375833 is a prime.

It is not a weakly prime, because it can be changed into another prime (37509375941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18754687980 + 18754687981.

It is an arithmetic number, because the mean of its divisors is an integer number (18754687981).

Almost surely, 2^37509375961 is an apocalyptic number.

It is an amenable number.

37509375961 is a deficient number, since it is larger than the sum of its proper divisors (1).

37509375961 is an equidigital number, since it uses as much as digits as its factorization.

37509375961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5358150, while the sum is 55.

The spelling of 37509375961 in words is "thirty-seven billion, five hundred nine million, three hundred seventy-five thousand, nine hundred sixty-one".