51635001268422 has 448 divisors, whose sum is σ = 141370655952960. Its totient is φ = 13921702502400.

The previous prime is 51635001268387. The next prime is 51635001268429. The reversal of 51635001268422 is 22486210053615.

51635001268422 is a `hidden beast` number, since 5 + 1 + 63 + 500 + 1 + 2 + 6 + 84 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51635001268429) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 3730576222 + ... + 3730590062.

It is an arithmetic number, because the mean of its divisors is an integer number (315559499895).

Almost surely, 2^{51635001268422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51635001268422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70685327976480).

51635001268422 is an abundant number, since it is smaller than the sum of its proper divisors (89735654684538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51635001268422 is a wasteful number, since it uses less digits than its factorization.

51635001268422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14531 (or 14516 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 51635001268422 in words is "fifty-one trillion, six hundred thirty-five billion, one million, two hundred sixty-eight thousand, four hundred twenty-two".