51323787248 has 20 divisors (see below), whose sum is σ = 99960471168. Its totient is φ = 25527536640.

The previous prime is 51323787239. The next prime is 51323787257. The reversal of 51323787248 is 84278732315.

It is an interprime number because it is at equal distance from previous prime (51323787239) and next prime (51323787257).

It is a super-2 number, since 2×51323787248² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51323787196 and 51323787205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8394161 + ... + 8400272.

Almost surely, 2^51323787248 is an apocalyptic number.

It is an amenable number.

51323787248 is a deficient number, since it is larger than the sum of its proper divisors (48636683920).

51323787248 is a wasteful number, since it uses less digits than its factorization.

51323787248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16794632 (or 16794626 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The spelling of 51323787248 in words is "fifty-one billion, three hundred twenty-three million, seven hundred eighty-seven thousand, two hundred forty-eight".