13535477680 has 40 divisors (see below), whose sum is σ = 31506032592. Its totient is φ = 5407989504.

The previous prime is 13535477671. The next prime is 13535477729. The reversal of 13535477680 is 8677453531.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26302 + ... + 166621.

Almost surely, 2^13535477680 is an apocalyptic number.

13535477680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13535477680 is an abundant number, since it is smaller than the sum of its proper divisors (17970554912).

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

13535477680 is a wasteful number, since it uses less digits than its factorization.

13535477680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193813 (or 193807 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 13535477680 in words is "thirteen billion, five hundred thirty-five million, four hundred seventy-seven thousand, six hundred eighty".