37509375949 has 2 divisors, whose sum is σ = 37509375950. Its totient is φ = 37509375948.

The previous prime is 37509375947. The next prime is 37509375961. The reversal of 37509375949 is 94957390573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19780453449 + 17728922500 = 140643^2 + 133150^2 .

It is a cyclic number.

It is not a de Polignac number, because 37509375949 - 2¹ = 37509375947 is a prime.

Together with 37509375947, it forms a pair of twin primes.

It is a congruent number.

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, 18754687974 + 18754687975.

It is an arithmetic number, because the mean of its divisors is an integer number (18754687975).

Almost surely, 2^37509375949 is an apocalyptic number.

It is an amenable number.

37509375949 is a deficient number, since it is larger than the sum of its proper divisors (1).

37509375949 is an equidigital number, since it uses as much as digits as its factorization.

37509375949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32148900, while the sum is 61.

The spelling of 37509375949 in words is "thirty-seven billion, five hundred nine million, three hundred seventy-five thousand, nine hundred forty-nine".