2801158981 has 16 divisors (see below), whose sum is σ = 2945923200. Its totient is φ = 2659745088.

The previous prime is 2801158967. The next prime is 2801159041. The reversal of 2801158981 is 1898511082.

It is a cyclic number.

It is not a de Polignac number, because 2801158981 - 2²³ = 2792770373 is a prime.

It is a super-2 number, since 2×2801158981² = 15692983273673916722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801158931) 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 in 15 ways as a sum of consecutive naturals, for example, 2123040 + ... + 2124358.

It is an arithmetic number, because the mean of its divisors is an integer number (184120200).

Almost surely, 2^2801158981 is an apocalyptic number.

It is an amenable number.

2801158981 is a deficient number, since it is larger than the sum of its proper divisors (144764219).

2801158981 is a wasteful number, since it uses less digits than its factorization.

2801158981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 46080, while the sum is 43.

The square root of 2801158981 is about 52925.9764293489. The cubic root of 2801158981 is about 1409.6541882859.

The spelling of 2801158981 in words is "two billion, eight hundred one million, one hundred fifty-eight thousand, nine hundred eighty-one".