2978917113 has 8 divisors (see below), whose sum is σ = 3976114176. Its totient is φ = 1983832400.

The previous prime is 2978917111. The next prime is 2978917133. The reversal of 2978917113 is 3117198792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2978917113 - 2¹ = 2978917111 is a prime.

It is a super-2 number, since 2×2978917113² = 17747894332248509538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2978917111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524793 + ... + 530438.

It is an arithmetic number, because the mean of its divisors is an integer number (497014272).

Almost surely, 2^2978917113 is an apocalyptic number.

It is an amenable number.

2978917113 is a deficient number, since it is larger than the sum of its proper divisors (997197063).

2978917113 is a wasteful number, since it uses less digits than its factorization.

2978917113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056175.

The product of its digits is 190512, while the sum is 48.

The square root of 2978917113 is about 54579.4568771072. The cubic root of 2978917113 is about 1438.8630932716.

The spelling of 2978917113 in words is "two billion, nine hundred seventy-eight million, nine hundred seventeen thousand, one hundred thirteen".