4891241887 has 24 divisors (see below), whose sum is σ = 6080921424. Its totient is φ = 3908927232.

The previous prime is 4891241881. The next prime is 4891241891. The reversal of 4891241887 is 7881421984.

It is not a de Polignac number, because 4891241887 - 2³ = 4891241879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891241881) 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, 61693 + ... + 116569.

It is an arithmetic number, because the mean of its divisors is an integer number (253371726).

Almost surely, 2^4891241887 is an apocalyptic number.

4891241887 is a deficient number, since it is larger than the sum of its proper divisors (1189679537).

4891241887 is a wasteful number, since it uses less digits than its factorization.

4891241887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55015 (or 55008 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 52.

The square root of 4891241887 is about 69937.4140714396. The cubic root of 4891241887 is about 1697.4866998639.

The spelling of 4891241887 in words is "four billion, eight hundred ninety-one million, two hundred forty-one thousand, eight hundred eighty-seven".