51345102051111 has 64 divisors (see below), whose sum is σ = 76058025232896. Its totient is φ = 30548927692800.

The previous prime is 51345102051109. The next prime is 51345102051137. The reversal of 51345102051111 is 11115020154315.

It is not a de Polignac number, because 51345102051111 - 2¹ = 51345102051109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345102051151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1386899781 + ... + 1386936801.

It is an arithmetic number, because the mean of its divisors is an integer number (1188406644264).

Almost surely, 2^{51345102051111} is an apocalyptic number.

51345102051111 is a deficient number, since it is larger than the sum of its proper divisors (24712923181785).

51345102051111 is a wasteful number, since it uses less digits than its factorization.

51345102051111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39232.

The product of its (nonzero) digits is 3000, while the sum is 30.

The spelling of 51345102051111 in words is "fifty-one trillion, three hundred forty-five billion, one hundred two million, fifty-one thousand, one hundred eleven".