37800401999 has 2 divisors, whose sum is σ = 37800402000. Its totient is φ = 37800401998.

The previous prime is 37800401993. The next prime is 37800402007. The reversal of 37800401999 is 99910400873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37800401999 - 2²⁴ = 37783624783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37800401993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18900200999 + 18900201000.

It is an arithmetic number, because the mean of its divisors is an integer number (18900201000).

Almost surely, 2^37800401999 is an apocalyptic number.

37800401999 is a deficient number, since it is larger than the sum of its proper divisors (1).

37800401999 is an equidigital number, since it uses as much as digits as its factorization.

37800401999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 37800401999 in words is "thirty-seven billion, eight hundred million, four hundred one thousand, nine hundred ninety-nine".