51044634630 has 96 divisors (see below), whose sum is σ = 144902403360. Its totient is φ = 12364093440.

The previous prime is 51044634617. The next prime is 51044634653. The reversal of 51044634630 is 3643644015.

51044634630 is a `hidden beast` number, since 5 + 10 + 4 + 4 + 6 + 3 + 4 + 630 = 666.

51044634630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1195734 + ... + 1237686.

It is an arithmetic number, because the mean of its divisors is an integer number (1509400035).

Almost surely, 2^51044634630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51044634630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72451201680).

51044634630 is an abundant number, since it is smaller than the sum of its proper divisors (93857768730).

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

51044634630 is a wasteful number, since it uses less digits than its factorization.

51044634630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43206 (or 43203 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 51044634630 in words is "fifty-one billion, forty-four million, six hundred thirty-four thousand, six hundred thirty".