37920670819 has 2 divisors, whose sum is σ = 37920670820. Its totient is φ = 37920670818.

The previous prime is 37920670783. The next prime is 37920670891. The reversal of 37920670819 is 91807602973.

Together with next prime (37920670891) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (91807602973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37920670819 - 2¹⁷ = 37920539747 is a prime.

It is a super-2 number, since 2×37920670819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (37920670219) 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, 18960335409 + 18960335410.

It is an arithmetic number, because the mean of its divisors is an integer number (18960335410).

Almost surely, 2^37920670819 is an apocalyptic number.

37920670819 is a deficient number, since it is larger than the sum of its proper divisors (1).

37920670819 is an equidigital number, since it uses as much as digits as its factorization.

37920670819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 37920670819 in words is "thirty-seven billion, nine hundred twenty million, six hundred seventy thousand, eight hundred nineteen".