51632678790 has 384 divisors, whose sum is σ = 176951623680. Its totient is φ = 10119686400.

The previous prime is 51632678723. The next prime is 51632678803. The reversal of 51632678790 is 9787623615.

51632678790 is a `hidden beast` number, since 516 + 32 + 6 + 7 + 8 + 7 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 35681847 + ... + 35683293.

It is an arithmetic number, because the mean of its divisors is an integer number (460811520).

Almost surely, 2^51632678790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51632678790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88475811840).

51632678790 is an abundant number, since it is smaller than the sum of its proper divisors (125318944890).

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

51632678790 is a wasteful number, since it uses less digits than its factorization.

51632678790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 51632678790 in words is "fifty-one billion, six hundred thirty-two million, six hundred seventy-eight thousand, seven hundred ninety".