19467404819 has 2 divisors, whose sum is σ = 19467404820. Its totient is φ = 19467404818.

The previous prime is 19467404797. The next prime is 19467404833. The reversal of 19467404819 is 91840476491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19467404819 - 2⁸ = 19467404563 is a prime.

It is a super-2 number, since 2×19467404819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19467404119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9733702409 + 9733702410.

It is an arithmetic number, because the mean of its divisors is an integer number (9733702410).

Almost surely, 2^19467404819 is an apocalyptic number.

19467404819 is a deficient number, since it is larger than the sum of its proper divisors (1).

19467404819 is an equidigital number, since it uses as much as digits as its factorization.

19467404819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 19467404819 in words is "nineteen billion, four hundred sixty-seven million, four hundred four thousand, eight hundred nineteen".