51041860121 has 8 divisors (see below), whose sum is σ = 59910137280. Its totient is φ = 42567728688.

The previous prime is 51041860117. The next prime is 51041860201. The reversal of 51041860121 is 12106814015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51041860121 - 2² = 51041860117 is a prime.

It is a super-2 number, since 2×51041860121² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51041860021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98536151 + ... + 98536668.

It is an arithmetic number, because the mean of its divisors is an integer number (7488767160).

Almost surely, 2^51041860121 is an apocalyptic number.

It is an amenable number.

51041860121 is a deficient number, since it is larger than the sum of its proper divisors (8868277159).

51041860121 is a wasteful number, since it uses less digits than its factorization.

51041860121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197072863.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 51041860121 in words is "fifty-one billion, forty-one million, eight hundred sixty thousand, one hundred twenty-one".