51348223137 has 8 divisors (see below), whose sum is σ = 68474686336. Its totient is φ = 34226954352.

The previous prime is 51348223127. The next prime is 51348223193. The reversal of 51348223137 is 73132284315.

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

It is not a de Polignac number, because 51348223137 - 2¹⁴ = 51348206753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51348223095 and 51348223104.

It is not an unprimeable number, because it can be changed into a prime (51348223117) 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, 1275478 + ... + 1315119.

It is an arithmetic number, because the mean of its divisors is an integer number (8559335792).

Almost surely, 2^51348223137 is an apocalyptic number.

It is an amenable number.

51348223137 is a deficient number, since it is larger than the sum of its proper divisors (17126463199).

51348223137 is a wasteful number, since it uses less digits than its factorization.

51348223137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597207.

The product of its digits is 120960, while the sum is 39.

The spelling of 51348223137 in words is "fifty-one billion, three hundred forty-eight million, two hundred twenty-three thousand, one hundred thirty-seven".