51599085578 has 16 divisors (see below), whose sum is σ = 78669792000. Its totient is φ = 25378250352.

The previous prime is 51599085553. The next prime is 51599085611. The reversal of 51599085578 is 87558099515.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51599085578.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564518 + ... + 649521.

It is an arithmetic number, because the mean of its divisors is an integer number (4916862000).

Almost surely, 2^51599085578 is an apocalyptic number.

51599085578 is a deficient number, since it is larger than the sum of its proper divisors (27070706422).

51599085578 is a wasteful number, since it uses less digits than its factorization.

51599085578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214389.

The product of its (nonzero) digits is 22680000, while the sum is 62.

The spelling of 51599085578 in words is "fifty-one billion, five hundred ninety-nine million, eighty-five thousand, five hundred seventy-eight".