51822761088 has 128 divisors (see below), whose sum is σ = 157596462720. Its totient is φ = 14780399616.

The previous prime is 51822761077. The next prime is 51822761129. The reversal of 51822761088 is 88016722815.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534270 + ... + 1567682.

It is an arithmetic number, because the mean of its divisors is an integer number (1231222365).

Almost surely, 2^51822761088 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 51822761088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78798231360).

51822761088 is an abundant number, since it is smaller than the sum of its proper divisors (105773701632).

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

51822761088 is a wasteful number, since it uses less digits than its factorization.

51822761088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34014 (or 34002 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 51822761088 in words is "fifty-one billion, eight hundred twenty-two million, seven hundred sixty-one thousand, eighty-eight".