4952487891 has 16 divisors (see below), whose sum is σ = 7276645376. Its totient is φ = 2976807456.

The previous prime is 4952487871. The next prime is 4952487893. The reversal of 4952487891 is 1987842594.

It is not a de Polignac number, because 4952487891 - 2¹⁴ = 4952471507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4952487893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1474915 + ... + 1478268.

It is an arithmetic number, because the mean of its divisors is an integer number (454790336).

Almost surely, 2^4952487891 is an apocalyptic number.

4952487891 is a deficient number, since it is larger than the sum of its proper divisors (2324157485).

4952487891 is a wasteful number, since it uses less digits than its factorization.

4952487891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953242.

The product of its digits is 5806080, while the sum is 57.

The square root of 4952487891 is about 70373.9148477616. The cubic root of 4952487891 is about 1704.5423952901.

It can be divided in two parts, 4952487 and 891, that added together give a triangular number (4953378 = T₃₁₄₇).

The spelling of 4952487891 in words is "four billion, nine hundred fifty-two million, four hundred eighty-seven thousand, eight hundred ninety-one".