37914388691 has 2 divisors, whose sum is σ = 37914388692. Its totient is φ = 37914388690.

The previous prime is 37914388661. The next prime is 37914388693. The reversal of 37914388691 is 19688341973.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 37914388691 - 2⁶ = 37914388627 is a prime.

Together with 37914388693, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37914388691.

It is not a weakly prime, because it can be changed into another prime (37914388693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18957194345 + 18957194346.

It is an arithmetic number, because the mean of its divisors is an integer number (18957194346).

Almost surely, 2^37914388691 is an apocalyptic number.

37914388691 is a deficient number, since it is larger than the sum of its proper divisors (1).

37914388691 is an equidigital number, since it uses as much as digits as its factorization.

37914388691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 59.

The spelling of 37914388691 in words is "thirty-seven billion, nine hundred fourteen million, three hundred eighty-eight thousand, six hundred ninety-one".