51758755785715 has 32 divisors (see below), whose sum is σ = 68163063411456. Its totient is φ = 37417186930560.

The previous prime is 51758755785713. The next prime is 51758755785719.

51758755785715 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51758755785715 - 2¹ = 51758755785713 is a prime.

It is a super-2 number, since 2×51758755785715² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51758755785713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44363472 + ... + 45515218.

It is an arithmetic number, because the mean of its divisors is an integer number (2130095731608).

Almost surely, 2^{51758755785715} is an apocalyptic number.

51758755785715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51758755785715 is a deficient number, since it is larger than the sum of its proper divisors (16404307625741).

51758755785715 is a wasteful number, since it uses less digits than its factorization.

51758755785715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156659.

The product of its digits is 2401000000, while the sum is 76.

The spelling of 51758755785715 in words is "fifty-one trillion, seven hundred fifty-eight billion, seven hundred fifty-five million, seven hundred eighty-five thousand, seven hundred fifteen".