51718620147 has 8 divisors (see below), whose sum is σ = 69669069456. Its totient is φ = 34123625472.

The previous prime is 51718620127. The next prime is 51718620167. The reversal of 51718620147 is 74102681715.

51718620147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51718620127) and next prime (51718620167).

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

It is not a de Polignac number, because 51718620147 - 2⁸ = 51718619891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51718620099 and 51718620108.

It is not an unprimeable number, because it can be changed into a prime (51718620127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88863318 + ... + 88863899.

It is an arithmetic number, because the mean of its divisors is an integer number (8708633682).

Almost surely, 2^51718620147 is an apocalyptic number.

51718620147 is a deficient number, since it is larger than the sum of its proper divisors (17950449309).

51718620147 is a wasteful number, since it uses less digits than its factorization.

51718620147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177727317.

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 51718620147 in words is "fifty-one billion, seven hundred eighteen million, six hundred twenty thousand, one hundred forty-seven".