51106111068 has 48 divisors (see below), whose sum is σ = 127338946560. Its totient is φ = 15917361600.

The previous prime is 51106111057. The next prime is 51106111129. The reversal of 51106111068 is 86011160115.

It is a super-2 number, since 2×51106111068² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2357868 + ... + 2379443.

It is an arithmetic number, because the mean of its divisors is an integer number (2652894720).

Almost surely, 2^51106111068 is an apocalyptic number.

51106111068 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51106111068 is an abundant number, since it is smaller than the sum of its proper divisors (76232835492).

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

51106111068 is a wasteful number, since it uses less digits than its factorization.

51106111068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737378 (or 4737376 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 30.

The spelling of 51106111068 in words is "fifty-one billion, one hundred six million, one hundred eleven thousand, sixty-eight".