1970801879 has 2 divisors, whose sum is σ = 1970801880. Its totient is φ = 1970801878.

The previous prime is 1970801821. The next prime is 1970801893. The reversal of 1970801879 is 9781080791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1970801879 - 2²⁴ = 1954024663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970801479) 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, 985400939 + 985400940.

It is an arithmetic number, because the mean of its divisors is an integer number (985400940).

Almost surely, 2^1970801879 is an apocalyptic number.

1970801879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970801879 is an equidigital number, since it uses as much as digits as its factorization.

1970801879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 50.

The square root of 1970801879 is about 44393.7144086863. The cubic root of 1970801879 is about 1253.7597476203.

The spelling of 1970801879 in words is "one billion, nine hundred seventy million, eight hundred one thousand, eight hundred seventy-nine".