5211742891 has 8 divisors (see below), whose sum is σ = 5507182080. Its totient is φ = 4922040552.

The previous prime is 5211742871. The next prime is 5211742927. The reversal of 5211742891 is 1982471125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5211742891 - 2³¹ = 3064259243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5211742831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432345 + ... + 1435978.

It is an arithmetic number, because the mean of its divisors is an integer number (688397760).

Almost surely, 2^5211742891 is an apocalyptic number.

5211742891 is a deficient number, since it is larger than the sum of its proper divisors (295439189).

5211742891 is a wasteful number, since it uses less digits than its factorization.

5211742891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868425.

The product of its digits is 40320, while the sum is 40.

The square root of 5211742891 is about 72192.4018924429. The cubic root of 5211742891 is about 1733.7813522081.

The spelling of 5211742891 in words is "five billion, two hundred eleven million, seven hundred forty-two thousand, eight hundred ninety-one".