51823789791 has 8 divisors (see below), whose sum is σ = 73162997424. Its totient is φ = 32516887680.

The previous prime is 51823789769. The next prime is 51823789889. The reversal of 51823789791 is 19798732815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51823789791 - 2⁹ = 51823789279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51823789741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508076320 + ... + 508076421.

It is an arithmetic number, because the mean of its divisors is an integer number (9145374678).

Almost surely, 2^51823789791 is an apocalyptic number.

51823789791 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51823789791 is a deficient number, since it is larger than the sum of its proper divisors (21339207633).

51823789791 is a wasteful number, since it uses less digits than its factorization.

51823789791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016152761.

The product of its digits is 7620480, while the sum is 60.

It can be divided in two parts, 5182 and 3789791, that added together give a palindrome (3794973).

The spelling of 51823789791 in words is "fifty-one billion, eight hundred twenty-three million, seven hundred eighty-nine thousand, seven hundred ninety-one".