51162004764 has 180 divisors, whose sum is σ = 148395016224. Its totient is φ = 14811084288.

The previous prime is 51162004759. The next prime is 51162004799. The reversal of 51162004764 is 46740026115.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 17477869 + ... + 17480795.

Almost surely, 2^51162004764 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 51162004764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74197508112).

51162004764 is an abundant number, since it is smaller than the sum of its proper divisors (97233011460).

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

51162004764 is a wasteful number, since it uses less digits than its factorization.

51162004764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 51162004764 in words is "fifty-one billion, one hundred sixty-two million, four thousand, seven hundred sixty-four".