481500891 has 24 divisors (see below), whose sum is σ = 720720000. Its totient is φ = 309399552.

The previous prime is 481500881. The next prime is 481500923. The reversal of 481500891 is 198005184.

It is not a de Polignac number, because 481500891 - 2⁹ = 481500379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (481500821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199510 + ... + 201908.

It is an arithmetic number, because the mean of its divisors is an integer number (30030000).

Almost surely, 2^481500891 is an apocalyptic number.

481500891 is a deficient number, since it is larger than the sum of its proper divisors (239219109).

481500891 is a wasteful number, since it uses less digits than its factorization.

481500891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203 (or 3200 counting only the distinct ones).

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

The square root of 481500891 is about 21943.1285599843. The cubic root of 481500891 is about 783.7887610082.

The spelling of 481500891 in words is "four hundred eighty-one million, five hundred thousand, eight hundred ninety-one".