2919953309 has 16 divisors (see below), whose sum is σ = 3690922368. Its totient is φ = 2247849792.

The previous prime is 2919953299. The next prime is 2919953321. The reversal of 2919953309 is 9033599192.

It is a cyclic number.

It is not a de Polignac number, because 2919953309 - 2⁸ = 2919953053 is a prime.

It is a super-2 number, since 2×2919953309² = 17052254653480098962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2919953369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430247 + ... + 436980.

It is an arithmetic number, because the mean of its divisors is an integer number (230682648).

Almost surely, 2^2919953309 is an apocalyptic number.

It is an amenable number.

2919953309 is a deficient number, since it is larger than the sum of its proper divisors (770969059).

2919953309 is a wasteful number, since it uses less digits than its factorization.

2919953309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867284.

The product of its (nonzero) digits is 590490, while the sum is 50.

The square root of 2919953309 is about 54036.5923148379. The cubic root of 2919953309 is about 1429.3062814467.

The spelling of 2919953309 in words is "two billion, nine hundred nineteen million, nine hundred fifty-three thousand, three hundred nine".