51319129503 has 8 divisors (see below), whose sum is σ = 68531924608. Its totient is φ = 34159543704.

The previous prime is 51319129487. The next prime is 51319129571. The reversal of 51319129503 is 30592191315.

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

It is not a de Polignac number, because 51319129503 - 2⁴ = 51319129487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51319129573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13300075 + ... + 13303932.

It is an arithmetic number, because the mean of its divisors is an integer number (8566490576).

Almost surely, 2^51319129503 is an apocalyptic number.

51319129503 is a deficient number, since it is larger than the sum of its proper divisors (17212795105).

51319129503 is a wasteful number, since it uses less digits than its factorization.

51319129503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26604653.

The product of its (nonzero) digits is 36450, while the sum is 39.

It can be divided in two parts, 5131912 and 9503, that added together give a palindrome (5141415).

The spelling of 51319129503 in words is "fifty-one billion, three hundred nineteen million, one hundred twenty-nine thousand, five hundred three".