51868685354 has 8 divisors (see below), whose sum is σ = 77834675520. Its totient is φ = 25923793516.

The previous prime is 51868685327. The next prime is 51868685437. The reversal of 51868685354 is 45358686815.

It is a happy number.

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 = 51868685293 and 51868685302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5268434 + ... + 5278269.

It is an arithmetic number, because the mean of its divisors is an integer number (9729334440).

Almost surely, 2^51868685354 is an apocalyptic number.

51868685354 is a deficient number, since it is larger than the sum of its proper divisors (25965990166).

51868685354 is a wasteful number, since it uses less digits than its factorization.

51868685354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10549164.

The product of its digits is 27648000, while the sum is 59.

The spelling of 51868685354 in words is "fifty-one billion, eight hundred sixty-eight million, six hundred eighty-five thousand, three hundred fifty-four".