51162341772 has 24 divisors (see below), whose sum is σ = 126401080176. Its totient is φ = 16050930688.

The previous prime is 51162341723. The next prime is 51162341801. The reversal of 51162341772 is 27714326115.

It is a self number, because there is not a number n which added to its sum of digits gives 51162341772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125397693 + ... + 125398100.

It is an arithmetic number, because the mean of its divisors is an integer number (5266711674).

Almost surely, 2^51162341772 is an apocalyptic number.

It is an amenable number.

51162341772 is an abundant number, since it is smaller than the sum of its proper divisors (75238738404).

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

51162341772 is a wasteful number, since it uses less digits than its factorization.

51162341772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250795817 (or 250795815 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

Adding to 51162341772 its reverse (27714326115), we get a palindrome (78876667887).

The spelling of 51162341772 in words is "fifty-one billion, one hundred sixty-two million, three hundred forty-one thousand, seven hundred seventy-two".