51631250814 has 192 divisors, whose sum is σ = 134755246080. Its totient is φ = 14080469760.

The previous prime is 51631250813. The next prime is 51631250861. The reversal of 51631250814 is 41805213615.

51631250814 is a `hidden beast` number, since 5 + 1 + 631 + 2 + 5 + 0 + 8 + 14 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51631250813) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19285644 + ... + 19288320.

It is an arithmetic number, because the mean of its divisors is an integer number (701850240).

Almost surely, 2^51631250814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51631250814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67377623040).

51631250814 is an abundant number, since it is smaller than the sum of its proper divisors (83123995266).

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

51631250814 is a wasteful number, since it uses less digits than its factorization.

51631250814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 51631250814 in words is "fifty-one billion, six hundred thirty-one million, two hundred fifty thousand, eight hundred fourteen".