3685478745863 has 4 divisors (see below), whose sum is σ = 3687203352000. Its totient is φ = 3683754139728.

The previous prime is 3685478745857. The next prime is 3685478745877.

3685478745863 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3685478745863 - 2⁶ = 3685478745799 is a prime.

It is a super-2 number, since 2×3685478745863² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685478745833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862299863 + ... + 862304136.

It is an arithmetic number, because the mean of its divisors is an integer number (921800838000).

Almost surely, 2^{3685478745863} is an apocalyptic number.

3685478745863 is a deficient number, since it is larger than the sum of its proper divisors (1724606137).

3685478745863 is a wasteful number, since it uses less digits than its factorization.

3685478745863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724606136.

The product of its digits is 3251404800, while the sum is 74.

The spelling of 3685478745863 in words is "three trillion, six hundred eighty-five billion, four hundred seventy-eight million, seven hundred forty-five thousand, eight hundred sixty-three".