51201010136 has 8 divisors (see below), whose sum is σ = 96001894020. Its totient is φ = 25600505064.

The previous prime is 51201010123. The next prime is 51201010141. The reversal of 51201010136 is 63101010215.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200063126 + ... + 3200063141.

Almost surely, 2^51201010136 is an apocalyptic number.

It is an amenable number.

51201010136 is a deficient number, since it is larger than the sum of its proper divisors (44800883884).

51201010136 is a wasteful number, since it uses less digits than its factorization.

51201010136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400126273 (or 6400126269 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The spelling of 51201010136 in words is "fifty-one billion, two hundred one million, ten thousand, one hundred thirty-six".