52617478787 has 8 divisors (see below), whose sum is σ = 58134913056. Its totient is φ = 47369187712.

The previous prime is 52617478783. The next prime is 52617478801. The reversal of 52617478787 is 78787471625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52617478787 - 2² = 52617478783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52617478783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67285388 + ... + 67286169.

It is an arithmetic number, because the mean of its divisors is an integer number (7266864132).

Almost surely, 2^52617478787 is an apocalyptic number.

52617478787 is a deficient number, since it is larger than the sum of its proper divisors (5517434269).

52617478787 is a wasteful number, since it uses less digits than its factorization.

52617478787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134571597.

The product of its digits is 36879360, while the sum is 62.

The spelling of 52617478787 in words is "fifty-two billion, six hundred seventeen million, four hundred seventy-eight thousand, seven hundred eighty-seven".