5191778883 has 4 divisors (see below), whose sum is σ = 6922371848. Its totient is φ = 3461185920.

The previous prime is 5191778881. The next prime is 5191778897. The reversal of 5191778883 is 3888771915.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5191778883 - 2¹ = 5191778881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5191778881) 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, 865296478 + ... + 865296483.

It is an arithmetic number, because the mean of its divisors is an integer number (1730592962).

Almost surely, 2^5191778883 is an apocalyptic number.

5191778883 is a deficient number, since it is larger than the sum of its proper divisors (1730592965).

5191778883 is a wasteful number, since it uses less digits than its factorization.

5191778883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730592964.

The product of its digits is 3386880, while the sum is 57.

The square root of 5191778883 is about 72053.9997710051. Note that the first 3 decimals coincide. The cubic root of 5191778883 is about 1731.5647223097.

The spelling of 5191778883 in words is "five billion, one hundred ninety-one million, seven hundred seventy-eight thousand, eight hundred eighty-three".