18932607940009 has 2 divisors, whose sum is σ = 18932607940010. Its totient is φ = 18932607940008.

The previous prime is 18932607939961. The next prime is 18932607940097. The reversal of 18932607940009 is 90004970623981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18458709249600 + 473898690409 = 4296360^2 + 688403^2 .

It is a cyclic number.

It is not a de Polignac number, because 18932607940009 - 2³⁵ = 18898248201641 is a prime.

It is not a weakly prime, because it can be changed into another prime (18932607944009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9466303970004 + 9466303970005.

It is an arithmetic number, because the mean of its divisors is an integer number (9466303970005).

Almost surely, 2^{18932607940009} is an apocalyptic number.

It is an amenable number.

18932607940009 is a deficient number, since it is larger than the sum of its proper divisors (1).

18932607940009 is an equidigital number, since it uses as much as digits as its factorization.

18932607940009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 18932607940009 in words is "eighteen trillion, nine hundred thirty-two billion, six hundred seven million, nine hundred forty thousand, nine".