37813840187 has 2 divisors, whose sum is σ = 37813840188. Its totient is φ = 37813840186.

The previous prime is 37813840151. The next prime is 37813840189. The reversal of 37813840187 is 78104831873.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78104831873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37813840187 - 2²² = 37809645883 is a prime.

Together with 37813840189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (37813840189) 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, 18906920093 + 18906920094.

It is an arithmetic number, because the mean of its divisors is an integer number (18906920094).

Almost surely, 2^37813840187 is an apocalyptic number.

37813840187 is a deficient number, since it is larger than the sum of its proper divisors (1).

37813840187 is an equidigital number, since it uses as much as digits as its factorization.

37813840187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 37813840187 in words is "thirty-seven billion, eight hundred thirteen million, eight hundred forty thousand, one hundred eighty-seven".