53865856835 has 64 divisors (see below), whose sum is σ = 78652637184. Its totient is φ = 34635081600.

The previous prime is 53865856817. The next prime is 53865856873.

53865856835 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53865856835 - 2⁶ = 53865856771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5920640 + ... + 5929730.

It is an arithmetic number, because the mean of its divisors is an integer number (1228947456).

Almost surely, 2^53865856835 is an apocalyptic number.

53865856835 is a deficient number, since it is larger than the sum of its proper divisors (24786780349).

53865856835 is a wasteful number, since it uses less digits than its factorization.

53865856835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304.

The product of its digits is 103680000, while the sum is 62.

The spelling of 53865856835 in words is "fifty-three billion, eight hundred sixty-five million, eight hundred fifty-six thousand, eight hundred thirty-five".