13766678480 has 40 divisors (see below), whose sum is σ = 32458351104. Its totient is φ = 5429110400.

The previous prime is 13766678477. The next prime is 13766678531. The reversal of 13766678480 is 8487666731.

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

It is a super-2 number, since 2×13766678480² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1206176 + ... + 1217535.

Almost surely, 2^13766678480 is an apocalyptic number.

13766678480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13766678480 is an abundant number, since it is smaller than the sum of its proper divisors (18691672624).

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

13766678480 is a wasteful number, since it uses less digits than its factorization.

13766678480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423795 (or 2423789 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 13766678480 in words is "thirteen billion, seven hundred sixty-six million, six hundred seventy-eight thousand, four hundred eighty".