51510441042 has 48 divisors (see below), whose sum is σ = 114475210200. Its totient is φ = 16733074176.

The previous prime is 51510441011. The next prime is 51510441053. The reversal of 51510441042 is 24014401515.

51510441042 is a `hidden beast` number, since 5 + 1 + 510 + 44 + 104 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 37086671241 + 14423769801 = 192579^2 + 120099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51510440997 and 51510441015.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39043 + ... + 323334.

Almost surely, 2^51510441042 is an apocalyptic number.

51510441042 is an abundant number, since it is smaller than the sum of its proper divisors (62964769158).

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

51510441042 is a wasteful number, since it uses less digits than its factorization.

51510441042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362587 (or 362584 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 51510441042 its reverse (24014401515), we get a palindrome (75524842557).

The spelling of 51510441042 in words is "fifty-one billion, five hundred ten million, four hundred forty-one thousand, forty-two".