1970211619 has 2 divisors, whose sum is σ = 1970211620. Its totient is φ = 1970211618.

The previous prime is 1970211571. The next prime is 1970211647. The reversal of 1970211619 is 9161120791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1970211619 - 2⁷ = 1970211491 is a prime.

It is a super-2 number, since 2×1970211619² = 7763467647285202322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1970211679) 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, 985105809 + 985105810.

It is an arithmetic number, because the mean of its divisors is an integer number (985105810).

Almost surely, 2^1970211619 is an apocalyptic number.

1970211619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970211619 is an equidigital number, since it uses as much as digits as its factorization.

1970211619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 37.

The square root of 1970211619 is about 44387.0658976238. The cubic root of 1970211619 is about 1253.6345670816.

The spelling of 1970211619 in words is "one billion, nine hundred seventy million, two hundred eleven thousand, six hundred nineteen".