4517122981 has 8 divisors (see below), whose sum is σ = 5233145024. Its totient is φ = 3818780640.

The previous prime is 4517122957. The next prime is 4517122997. The reversal of 4517122981 is 1892217154.

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 4517122981 - 2⁵ = 4517122949 is a prime.

It is a super-2 number, since 2×4517122981² = 40808800050956652722, 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 (4517132981) 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, 4419375 + ... + 4420396.

It is an arithmetic number, because the mean of its divisors is an integer number (654143128).

Almost surely, 2^4517122981 is an apocalyptic number.

It is an amenable number.

4517122981 is a deficient number, since it is larger than the sum of its proper divisors (716022043).

4517122981 is an equidigital number, since it uses as much as digits as its factorization.

4517122981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8839851.

The product of its digits is 40320, while the sum is 40.

The square root of 4517122981 is about 67209.5453116594. The cubic root of 4517122981 is about 1653.0550050640.

The spelling of 4517122981 in words is "four billion, five hundred seventeen million, one hundred twenty-two thousand, nine hundred eighty-one".