51115051119 has 24 divisors (see below), whose sum is σ = 75000285360. Its totient is φ = 30942482560.

The previous prime is 51115051109. The next prime is 51115051129. The reversal of 51115051119 is 91115051115.

It is an interprime number because it is at equal distance from previous prime (51115051109) and next prime (51115051129).

It is not a de Polignac number, because 51115051119 - 2¹² = 51115047023 is a prime.

It is a super-2 number, since 2×51115051119² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115051109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228937 + ... + 393245.

It is an arithmetic number, because the mean of its divisors is an integer number (3125011890).

Almost surely, 2^51115051119 is an apocalyptic number.

51115051119 is a deficient number, since it is larger than the sum of its proper divisors (23885234241).

51115051119 is a wasteful number, since it uses less digits than its factorization.

51115051119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165191 (or 165180 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 30.

The spelling of 51115051119 in words is "fifty-one billion, one hundred fifteen million, fifty-one thousand, one hundred nineteen".