51226722996388 has 48 divisors (see below), whose sum is σ = 90479720669184. Its totient is φ = 25376502443040.

The previous prime is 51226722996359. The next prime is 51226722996401. The reversal of 51226722996388 is 88369922762215.

It is a super-2 number, since 2×51226722996388² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553283245 + ... + 2553303307.

It is an arithmetic number, because the mean of its divisors is an integer number (1884994180608).

Almost surely, 2^{51226722996388} is an apocalyptic number.

It is an amenable number.

51226722996388 is a deficient number, since it is larger than the sum of its proper divisors (39252997672796).

51226722996388 is a wasteful number, since it uses less digits than its factorization.

51226722996388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33832 (or 33830 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 70.

The spelling of 51226722996388 in words is "fifty-one trillion, two hundred twenty-six billion, seven hundred twenty-two million, nine hundred ninety-six thousand, three hundred eighty-eight".