5191351493 has 4 divisors (see below), whose sum is σ = 5191823040. Its totient is φ = 5190879948.

The previous prime is 5191351463. The next prime is 5191351507. The reversal of 5191351493 is 3941531915.

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 a cyclic number.

It is not a de Polignac number, because 5191351493 - 2⁸ = 5191351237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5191351493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191351423) 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 3 ways as a sum of consecutive naturals, for example, 218855 + ... + 241412.

It is an arithmetic number, because the mean of its divisors is an integer number (1297955760).

Almost surely, 2^5191351493 is an apocalyptic number.

It is an amenable number.

5191351493 is a deficient number, since it is larger than the sum of its proper divisors (471547).

5191351493 is a wasteful number, since it uses less digits than its factorization.

5191351493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471546.

The product of its digits is 72900, while the sum is 41.

The square root of 5191351493 is about 72051.0339481676. The cubic root of 5191351493 is about 1731.5172065627.

The spelling of 5191351493 in words is "five billion, one hundred ninety-one million, three hundred fifty-one thousand, four hundred ninety-three".