51305275470 has 64 divisors (see below), whose sum is σ = 127655922240. Its totient is φ = 13180876800.

The previous prime is 51305275453. The next prime is 51305275517. The reversal of 51305275470 is 7457250315.

It is a happy number.

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, 337110 + ... + 465030.

It is an arithmetic number, because the mean of its divisors is an integer number (1994623785).

Almost surely, 2^51305275470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51305275470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63827961120).

51305275470 is an abundant number, since it is smaller than the sum of its proper divisors (76350646770).

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

51305275470 is a wasteful number, since it uses less digits than its factorization.

51305275470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128421.

The product of its (nonzero) digits is 147000, while the sum is 39.

The spelling of 51305275470 in words is "fifty-one billion, three hundred five million, two hundred seventy-five thousand, four hundred seventy".