52785171478 has 16 divisors (see below), whose sum is σ = 85273488720. Its totient is φ = 24360919776.

The previous prime is 52785171473. The next prime is 52785171497. The reversal of 52785171478 is 87417158725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52785171473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464076 + ... + 566512.

It is an arithmetic number, because the mean of its divisors is an integer number (5329593045).

Almost surely, 2^52785171478 is an apocalyptic number.

52785171478 is a deficient number, since it is larger than the sum of its proper divisors (32488317242).

52785171478 is a wasteful number, since it uses less digits than its factorization.

52785171478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122271.

The product of its digits is 4390400, while the sum is 55.

The spelling of 52785171478 in words is "fifty-two billion, seven hundred eighty-five million, one hundred seventy-one thousand, four hundred seventy-eight".