51580489578 has 16 divisors (see below), whose sum is σ = 103163224320. Its totient is φ = 17193122336.

The previous prime is 51580489547. The next prime is 51580489589. The reversal of 51580489578 is 87598408515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433726 + ... + 539702.

It is an arithmetic number, because the mean of its divisors is an integer number (6447701520).

Almost surely, 2^51580489578 is an apocalyptic number.

51580489578 is an abundant number, since it is smaller than the sum of its proper divisors (51582734742).

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

51580489578 is a wasteful number, since it uses less digits than its factorization.

51580489578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187101.

The product of its (nonzero) digits is 16128000, while the sum is 60.

The spelling of 51580489578 in words is "fifty-one billion, five hundred eighty million, four hundred eighty-nine thousand, five hundred seventy-eight".