4580001981 has 16 divisors (see below), whose sum is σ = 6786870400. Its totient is φ = 3052577664.

The previous prime is 4580001973. The next prime is 4580002067. The reversal of 4580001981 is 1891000854.

It is not a de Polignac number, because 4580001981 - 2³ = 4580001973 is a prime.

It is a super-2 number, since 2×4580001981² = 41952836291927848722, 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 (4580001901) 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, 103245 + ... + 140781.

It is an arithmetic number, because the mean of its divisors is an integer number (424179400).

Almost surely, 2^4580001981 is an apocalyptic number.

It is an amenable number.

4580001981 is a deficient number, since it is larger than the sum of its proper divisors (2206868419).

4580001981 is a wasteful number, since it uses less digits than its factorization.

4580001981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42065 (or 42059 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 4580001981 is about 67675.7118987307. The cubic root of 4580001981 is about 1660.6899417059.

The spelling of 4580001981 in words is "four billion, five hundred eighty million, one thousand, nine hundred eighty-one".