51103107786 has 16 divisors (see below), whose sum is σ = 102209595264. Its totient is φ = 17033805984.

The previous prime is 51103107739. The next prime is 51103107787. The reversal of 51103107786 is 68770130115.

It is a super-2 number, since 2×51103107786² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51103107787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83151 + ... + 330333.

It is an arithmetic number, because the mean of its divisors is an integer number (6388099704).

Almost surely, 2^51103107786 is an apocalyptic number.

51103107786 is an abundant number, since it is smaller than the sum of its proper divisors (51106487478).

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

51103107786 is a wasteful number, since it uses less digits than its factorization.

51103107786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281645.

The product of its (nonzero) digits is 35280, while the sum is 39.

The spelling of 51103107786 in words is "fifty-one billion, one hundred three million, one hundred seven thousand, seven hundred eighty-six".