51283867854 has 32 divisors (see below), whose sum is σ = 102876480000. Its totient is φ = 17043217664.

The previous prime is 51283867847. The next prime is 51283867861. The reversal of 51283867854 is 45876838215.

It is an interprime number because it is at equal distance from previous prime (51283867847) and next prime (51283867861).

It is a junction number, because it is equal to n+sod(n) for n = 51283867794 and 51283867803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4743547 + ... + 4754345.

It is an arithmetic number, because the mean of its divisors is an integer number (3214890000).

Almost surely, 2^51283867854 is an apocalyptic number.

51283867854 is an abundant number, since it is smaller than the sum of its proper divisors (51592612146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51283867854 is a wasteful number, since it uses less digits than its factorization.

51283867854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112.

The product of its digits is 12902400, while the sum is 57.

The spelling of 51283867854 in words is "fifty-one billion, two hundred eighty-three million, eight hundred sixty-seven thousand, eight hundred fifty-four".