5191928086 has 4 divisors (see below), whose sum is σ = 7787892132. Its totient is φ = 2595964042.

The previous prime is 5191928083. The next prime is 5191928089. The reversal of 5191928086 is 6808291915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6808291915 = 5 ⋅1361658383.

It is an interprime number because it is at equal distance from previous prime (5191928083) and next prime (5191928089).

It is a super-2 number, since 2×5191928086² = 53912234500391246792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191928083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1297982020 + ... + 1297982023.

It is an arithmetic number, because the mean of its divisors is an integer number (1946973033).

Almost surely, 2^5191928086 is an apocalyptic number.

5191928086 is a deficient number, since it is larger than the sum of its proper divisors (2595964046).

5191928086 is a wasteful number, since it uses less digits than its factorization.

5191928086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595964045.

The product of its (nonzero) digits is 311040, while the sum is 49.

The square root of 5191928086 is about 72055.0351189978. The cubic root of 5191928086 is about 1731.5813095708.

The spelling of 5191928086 in words is "five billion, one hundred ninety-one million, nine hundred twenty-eight thousand, eighty-six".