51280949088870 has 64 divisors (see below), whose sum is σ = 123165634752000. Its totient is φ = 13664770380800.

The previous prime is 51280949088749. The next prime is 51280949088883. The reversal of 51280949088870 is 7888094908215.

It is a junction number, because it is equal to n+sod(n) for n = 51280949088795 and 51280949088804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 741115975 + ... + 741185165.

It is an arithmetic number, because the mean of its divisors is an integer number (1924463043000).

Almost surely, 2^{51280949088870} is an apocalyptic number.

51280949088870 is an abundant number, since it is smaller than the sum of its proper divisors (71884685663130).

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

51280949088870 is a wasteful number, since it uses less digits than its factorization.

51280949088870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87181.

The product of its (nonzero) digits is 92897280, while the sum is 69.

The spelling of 51280949088870 in words is "fifty-one trillion, two hundred eighty billion, nine hundred forty-nine million, eighty-eight thousand, eight hundred seventy".