19190355827 has 2 divisors, whose sum is σ = 19190355828. Its totient is φ = 19190355826.

The previous prime is 19190355773. The next prime is 19190355841. The reversal of 19190355827 is 72855309191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19190355827 - 2¹⁶ = 19190290291 is a prime.

It is not a weakly prime, because it can be changed into another prime (19190355427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9595177913 + 9595177914.

It is an arithmetic number, because the mean of its divisors is an integer number (9595177914).

Almost surely, 2^19190355827 is an apocalyptic number.

19190355827 is a deficient number, since it is larger than the sum of its proper divisors (1).

19190355827 is an equidigital number, since it uses as much as digits as its factorization.

19190355827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 19190355827 in words is "nineteen billion, one hundred ninety million, three hundred fifty-five thousand, eight hundred twenty-seven".