4601009891 has 4 divisors (see below), whose sum is σ = 4605464952. Its totient is φ = 4596554832.

The previous prime is 4601009879. The next prime is 4601009893. The reversal of 4601009891 is 1989001064.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4601009891 - 2¹⁸ = 4600747747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4601009893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2225981 + ... + 2228046.

It is an arithmetic number, because the mean of its divisors is an integer number (1151366238).

Almost surely, 2^4601009891 is an apocalyptic number.

4601009891 is a deficient number, since it is larger than the sum of its proper divisors (4455061).

4601009891 is a wasteful number, since it uses less digits than its factorization.

4601009891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455060.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 4601009891 is about 67830.7444379022. The cubic root of 4601009891 is about 1663.2251966929.

The spelling of 4601009891 in words is "four billion, six hundred one million, nine thousand, eight hundred ninety-one".