5119656491 has 4 divisors (see below), whose sum is σ = 5296196400. Its totient is φ = 4943116584.

The previous prime is 5119656481. The next prime is 5119656557. The reversal of 5119656491 is 1946569115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1946569115 = 5 ⋅389313823.

It is not a de Polignac number, because 5119656491 - 2¹⁸ = 5119394347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5119656401) 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, 88269911 + ... + 88269968.

It is an arithmetic number, because the mean of its divisors is an integer number (1324049100).

Almost surely, 2^5119656491 is an apocalyptic number.

5119656491 is a deficient number, since it is larger than the sum of its proper divisors (176539909).

5119656491 is a wasteful number, since it uses less digits than its factorization.

5119656491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176539908.

The product of its digits is 291600, while the sum is 47.

The square root of 5119656491 is about 71551.7748976222. The cubic root of 5119656491 is about 1723.5092059704.

The spelling of 5119656491 in words is "five billion, one hundred nineteen million, six hundred fifty-six thousand, four hundred ninety-one".