53404862785 has 16 divisors (see below), whose sum is σ = 64645139520. Its totient is φ = 42352372800.

The previous prime is 53404862783. The next prime is 53404862801. The reversal of 53404862785 is 58726840435.

It is not a de Polignac number, because 53404862785 - 2¹ = 53404862783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53404862783) 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 15 ways as a sum of consecutive naturals, for example, 232810 + ... + 401260.

It is an arithmetic number, because the mean of its divisors is an integer number (4040321220).

Almost surely, 2^53404862785 is an apocalyptic number.

It is an amenable number.

53404862785 is a deficient number, since it is larger than the sum of its proper divisors (11240276735).

53404862785 is a wasteful number, since it uses less digits than its factorization.

53404862785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169008.

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 53404862785 in words is "fifty-three billion, four hundred four million, eight hundred sixty-two thousand, seven hundred eighty-five".