51100601018 has 8 divisors (see below), whose sum is σ = 76690235700. Its totient is φ = 25537189120.

The previous prime is 51100601011. The next prime is 51100601021. The reversal of 51100601018 is 81010600115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37714805209 + 13385795809 = 194203^2 + 115697^2 .

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

It is a super-2 number, since 2×51100601018² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51100600984 and 51100601002.

It is not an unprimeable number, because it can be changed into a prime (51100601011) 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, 6550823 + ... + 6558618.

Almost surely, 2^51100601018 is an apocalyptic number.

51100601018 is a deficient number, since it is larger than the sum of its proper divisors (25589634682).

51100601018 is a wasteful number, since it uses less digits than its factorization.

51100601018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13111392.

The product of its (nonzero) digits is 240, while the sum is 23.

The spelling of 51100601018 in words is "fifty-one billion, one hundred million, six hundred one thousand, eighteen".