51617227342 has 8 divisors (see below), whose sum is σ = 78516346032. Its totient is φ = 25445112000.

The previous prime is 51617227327. The next prime is 51617227349. The reversal of 51617227342 is 24372271615.

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

It is a junction number, because it is equal to n+sod(n) for n = 51617227295 and 51617227304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51617227349) 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, 181750659 + ... + 181750942.

It is an arithmetic number, because the mean of its divisors is an integer number (9814543254).

Almost surely, 2^51617227342 is an apocalyptic number.

51617227342 is a deficient number, since it is larger than the sum of its proper divisors (26899118690).

51617227342 is a wasteful number, since it uses less digits than its factorization.

51617227342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363501674.

The product of its digits is 141120, while the sum is 40.

Adding to 51617227342 its reverse (24372271615), we get a palindrome (75989498957).

The spelling of 51617227342 in words is "fifty-one billion, six hundred seventeen million, two hundred twenty-seven thousand, three hundred forty-two".