4991074851 has 16 divisors (see below), whose sum is σ = 7734355200. Its totient is φ = 2803702368.

The previous prime is 4991074799. The next prime is 4991074861. The reversal of 4991074851 is 1584701994.

It is not a de Polignac number, because 4991074851 - 2¹³ = 4991066659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4991074851.

It is not an unprimeable number, because it can be changed into a prime (4991074861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2012916 + ... + 2015393.

It is an arithmetic number, because the mean of its divisors is an integer number (483397200).

Almost surely, 2^4991074851 is an apocalyptic number.

4991074851 is a deficient number, since it is larger than the sum of its proper divisors (2743280349).

4991074851 is a wasteful number, since it uses less digits than its factorization.

4991074851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028378.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 4991074851 is about 70647.5395962237. The cubic root of 4991074851 is about 1708.9578880071.

The spelling of 4991074851 in words is "four billion, nine hundred ninety-one million, seventy-four thousand, eight hundred fifty-one".