51889473709 has 8 divisors (see below), whose sum is σ = 52072024928. Its totient is φ = 51707010960.

The previous prime is 51889473707. The next prime is 51889473731. The reversal of 51889473709 is 90737498815.

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

It is a cyclic number.

It is not a de Polignac number, because 51889473709 - 2¹ = 51889473707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51889473707) 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, 1288294 + ... + 1327960.

It is an arithmetic number, because the mean of its divisors is an integer number (6509003116).

Almost surely, 2^51889473709 is an apocalyptic number.

It is an amenable number.

51889473709 is a deficient number, since it is larger than the sum of its proper divisors (182551219).

51889473709 is a wasteful number, since it uses less digits than its factorization.

51889473709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44235.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 51889473709 in words is "fifty-one billion, eight hundred eighty-nine million, four hundred seventy-three thousand, seven hundred nine".