4891839742 has 16 divisors (see below), whose sum is σ = 7702848000. Its totient is φ = 2326898520.

The previous prime is 4891839703. The next prime is 4891839749. The reversal of 4891839742 is 2479381984.

It is a super-2 number, since 2×4891839742² = 47860192122821253128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891839749) 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, 664992 + ... + 672307.

It is an arithmetic number, because the mean of its divisors is an integer number (481428000).

Almost surely, 2^4891839742 is an apocalyptic number.

4891839742 is a deficient number, since it is larger than the sum of its proper divisors (2811008258).

4891839742 is a wasteful number, since it uses less digits than its factorization.

4891839742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337391.

The product of its digits is 3483648, while the sum is 55.

The square root of 4891839742 is about 69941.6881552054. The cubic root of 4891839742 is about 1697.5558581397. Note that the first 3 decimals are identical.

The spelling of 4891839742 in words is "four billion, eight hundred ninety-one million, eight hundred thirty-nine thousand, seven hundred forty-two".