51736134886 has 4 divisors (see below), whose sum is σ = 77604202332. Its totient is φ = 25868067442.

The previous prime is 51736134881. The next prime is 51736134889. The reversal of 51736134886 is 68843163715.

It is a happy number.

51736134886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68843163715 = 5 ⋅13768632743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51736134881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12934033720 + ... + 12934033723.

It is an arithmetic number, because the mean of its divisors is an integer number (19401050583).

Almost surely, 2^51736134886 is an apocalyptic number.

51736134886 is a deficient number, since it is larger than the sum of its proper divisors (25868067446).

51736134886 is a wasteful number, since it uses less digits than its factorization.

51736134886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25868067445.

The product of its digits is 2903040, while the sum is 52.

The spelling of 51736134886 in words is "fifty-one billion, seven hundred thirty-six million, one hundred thirty-four thousand, eight hundred eighty-six".