51226046136 has 64 divisors (see below), whose sum is σ = 147201300000. Its totient is φ = 16486541568.

The previous prime is 51226046099. The next prime is 51226046141. The reversal of 51226046136 is 63164062215.

51226046136 is a `hidden beast` number, since 5 + 12 + 2 + 604 + 6 + 1 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51226046136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4082661 + ... + 4095188.

Almost surely, 2^51226046136 is an apocalyptic number.

It is an amenable number.

51226046136 is an abundant number, since it is smaller than the sum of its proper divisors (95975253864).

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

51226046136 is a wasteful number, since it uses less digits than its factorization.

51226046136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8177893 (or 8177883 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 51226046136 in words is "fifty-one billion, two hundred twenty-six million, forty-six thousand, one hundred thirty-six".