3680638478848 has 40 divisors (see below), whose sum is σ = 7392591486720. Its totient is φ = 1830684011520.

The previous prime is 3680638478831. The next prime is 3680638478849. The reversal of 3680638478848 is 8488748360863.

It is a super-2 number, since 2×3680638478848² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3680638478849) 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, 18720918 + ... + 18916501.

It is an arithmetic number, because the mean of its divisors is an integer number (184814787168).

Almost surely, 2^{3680638478848} is an apocalyptic number.

It is an amenable number.

3680638478848 is an abundant number, since it is smaller than the sum of its proper divisors (3711953007872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3680638478848 is an equidigital number, since it uses as much as digits as its factorization.

3680638478848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37637628 (or 37637612 counting only the distinct ones).

The product of its (nonzero) digits is 1189085184, while the sum is 73.

The spelling of 3680638478848 in words is "three trillion, six hundred eighty billion, six hundred thirty-eight million, four hundred seventy-eight thousand, eight hundred forty-eight".