1206904902019 has 2 divisors, whose sum is σ = 1206904902020. Its totient is φ = 1206904902018.

The previous prime is 1206904901963. The next prime is 1206904902031. The reversal of 1206904902019 is 9102094096021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1206904902019 - 2¹³ = 1206904893827 is a prime.

It is a super-2 number, since 2×1206904902019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1206904702019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603452451009 + 603452451010.

It is an arithmetic number, because the mean of its divisors is an integer number (603452451010).

Almost surely, 2^{1206904902019} is an apocalyptic number.

1206904902019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206904902019 is an equidigital number, since it uses as much as digits as its factorization.

1206904902019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 1206904902019 in words is "one trillion, two hundred six billion, nine hundred four million, nine hundred two thousand, nineteen".