51083404764 has 192 divisors, whose sum is σ = 144613002240. Its totient is φ = 13727508480.

The previous prime is 51083404753. The next prime is 51083404817. The reversal of 51083404764 is 46740438015.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14757994 + ... + 14761454.

It is an arithmetic number, because the mean of its divisors is an integer number (753192720).

Almost surely, 2^51083404764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51083404764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72306501120).

51083404764 is an abundant number, since it is smaller than the sum of its proper divisors (93529597476).

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

51083404764 is a wasteful number, since it uses less digits than its factorization.

51083404764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3658 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 51083404764 in words is "fifty-one billion, eighty-three million, four hundred four thousand, seven hundred sixty-four".