5169011281 has 4 divisors (see below), whose sum is σ = 5907441472. Its totient is φ = 4430581092.

The previous prime is 5169011219. The next prime is 5169011291. The reversal of 5169011281 is 1821109615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5169011281 - 2¹¹ = 5169009233 is a prime.

It is a super-2 number, since 2×5169011281² = 53437355246210521922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5169011201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369215085 + ... + 369215098.

It is an arithmetic number, because the mean of its divisors is an integer number (1476860368).

Almost surely, 2^5169011281 is an apocalyptic number.

It is an amenable number.

5169011281 is a deficient number, since it is larger than the sum of its proper divisors (738430191).

5169011281 is an equidigital number, since it uses as much as digits as its factorization.

5169011281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738430190.

The product of its (nonzero) digits is 4320, while the sum is 34.

The square root of 5169011281 is about 71895.8363258958. The cubic root of 5169011281 is about 1729.0298592474.

The spelling of 5169011281 in words is "five billion, one hundred sixty-nine million, eleven thousand, two hundred eighty-one".