2009859967 has 2 divisors, whose sum is σ = 2009859968. Its totient is φ = 2009859966.

The previous prime is 2009859961. The next prime is 2009859979. The reversal of 2009859967 is 7699589002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2009859967 - 2³ = 2009859959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2009859961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004929983 + 1004929984.

It is an arithmetic number, because the mean of its divisors is an integer number (1004929984).

Almost surely, 2^2009859967 is an apocalyptic number.

2009859967 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009859967 is an equidigital number, since it uses as much as digits as its factorization.

2009859967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 2009859967 is about 44831.4617986075. The cubic root of 2009859967 is about 1261.9881200623.

The spelling of 2009859967 in words is "two billion, nine million, eight hundred fifty-nine thousand, nine hundred sixty-seven".