37875387457 has 2 divisors, whose sum is σ = 37875387458. Its totient is φ = 37875387456.

The previous prime is 37875387449. The next prime is 37875387461. The reversal of 37875387457 is 75478357873.

It is a Cunningham number, because it is equal to 194616²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37875387456 + 1 = 194616^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 37875387457 - 2³ = 37875387449 is a prime.

It is not a weakly prime, because it can be changed into another prime (37875387467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18937693728 + 18937693729.

It is an arithmetic number, because the mean of its divisors is an integer number (18937693729).

Almost surely, 2^37875387457 is an apocalyptic number.

It is an amenable number.

37875387457 is a deficient number, since it is larger than the sum of its proper divisors (1).

37875387457 is an equidigital number, since it uses as much as digits as its factorization.

37875387457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138297600, while the sum is 64.

The spelling of 37875387457 in words is "thirty-seven billion, eight hundred seventy-five million, three hundred eighty-seven thousand, four hundred fifty-seven".