51323203479 has 12 divisors (see below), whose sum is σ = 70709599608. Its totient is φ = 33111742320.

The previous prime is 51323203403. The next prime is 51323203493. The reversal of 51323203479 is 97430232315.

It is not a de Polignac number, because 51323203479 - 2¹⁵ = 51323170711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323203499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8898124 + ... + 8903889.

It is an arithmetic number, because the mean of its divisors is an integer number (5892466634).

Almost surely, 2^51323203479 is an apocalyptic number.

51323203479 is a deficient number, since it is larger than the sum of its proper divisors (19386396129).

51323203479 is a wasteful number, since it uses less digits than its factorization.

51323203479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17802078 (or 17802047 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 51323203479 in words is "fifty-one billion, three hundred twenty-three million, two hundred three thousand, four hundred seventy-nine".