51363729111 has 4 divisors (see below), whose sum is σ = 68484972152. Its totient is φ = 34242486072.

The previous prime is 51363729101. The next prime is 51363729181. The reversal of 51363729111 is 11192736315.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51363729111 - 2¹⁵ = 51363696343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51363729111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51363729101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8560621516 + ... + 8560621521.

It is an arithmetic number, because the mean of its divisors is an integer number (17121243038).

Almost surely, 2^51363729111 is an apocalyptic number.

51363729111 is a deficient number, since it is larger than the sum of its proper divisors (17121243041).

51363729111 is a wasteful number, since it uses less digits than its factorization.

51363729111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17121243040.

The product of its digits is 34020, while the sum is 39.

The spelling of 51363729111 in words is "fifty-one billion, three hundred sixty-three million, seven hundred twenty-nine thousand, one hundred eleven".