51727506322646 has 128 divisors (see below), whose sum is σ = 100409747420160. Its totient is φ = 19393235366400.

The previous prime is 51727506322627. The next prime is 51727506322691. The reversal of 51727506322646 is 64622360572715.

It is a junction number, because it is equal to n+sod(n) for n = 51727506322591 and 51727506322600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1695023780 + ... + 1695054296.

It is an arithmetic number, because the mean of its divisors is an integer number (784451151720).

Almost surely, 2^{51727506322646} is an apocalyptic number.

51727506322646 is a deficient number, since it is larger than the sum of its proper divisors (48682241097514).

51727506322646 is a wasteful number, since it uses less digits than its factorization.

51727506322646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31830.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 51727506322646 in words is "fifty-one trillion, seven hundred twenty-seven billion, five hundred six million, three hundred twenty-two thousand, six hundred forty-six".