51031064610 has 128 divisors (see below), whose sum is σ = 144179481600. Its totient is φ = 12799641600.

The previous prime is 51031064603. The next prime is 51031064611. The reversal of 51031064610 is 1646013015.

51031064610 is a `hidden beast` number, since 5 + 1 + 0 + 3 + 1 + 0 + 646 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51031064611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10788726 + ... + 10793454.

It is an arithmetic number, because the mean of its divisors is an integer number (1126402200).

Almost surely, 2^51031064610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51031064610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72089740800).

51031064610 is an abundant number, since it is smaller than the sum of its proper divisors (93148416990).

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

51031064610 is a wasteful number, since it uses less digits than its factorization.

51031064610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113 (or 7107 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 51031064610 its reverse (1646013015), we get a palindrome (52677077625).

The spelling of 51031064610 in words is "fifty-one billion, thirty-one million, sixty-four thousand, six hundred ten".