51845161285 has 8 divisors (see below), whose sum is σ = 62539923456. Its totient is φ = 41258975760.

The previous prime is 51845161253. The next prime is 51845161321. The reversal of 51845161285 is 58216154815.

It is a happy number.

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

It is not a de Polignac number, because 51845161285 - 2⁵ = 51845161253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27143109 + ... + 27145018.

It is an arithmetic number, because the mean of its divisors is an integer number (7817490432).

Almost surely, 2^51845161285 is an apocalyptic number.

It is an amenable number.

51845161285 is a deficient number, since it is larger than the sum of its proper divisors (10694762171).

51845161285 is a wasteful number, since it uses less digits than its factorization.

51845161285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54288323.

The product of its digits is 384000, while the sum is 46.

The spelling of 51845161285 in words is "fifty-one billion, eight hundred forty-five million, one hundred sixty-one thousand, two hundred eighty-five".