37791004091 has 2 divisors, whose sum is σ = 37791004092. Its totient is φ = 37791004090.

The previous prime is 37791004049. The next prime is 37791004109. The reversal of 37791004091 is 19040019773.

Together with next prime (37791004109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37791004091 is a prime.

It is not a weakly prime, because it can be changed into another prime (37791004591) 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, 18895502045 + 18895502046.

It is an arithmetic number, because the mean of its divisors is an integer number (18895502046).

Almost surely, 2^37791004091 is an apocalyptic number.

37791004091 is a deficient number, since it is larger than the sum of its proper divisors (1).

37791004091 is an equidigital number, since it uses as much as digits as its factorization.

37791004091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 41.

The spelling of 37791004091 in words is "thirty-seven billion, seven hundred ninety-one million, four thousand, ninety-one".