13511404456 has 32 divisors (see below), whose sum is σ = 27895272480. Its totient is φ = 6084145600.

The previous prime is 13511404369. The next prime is 13511404481. The reversal of 13511404456 is 65440411531.

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, 708055 + ... + 726886.

It is an arithmetic number, because the mean of its divisors is an integer number (871727265).

Almost surely, 2^13511404456 is an apocalyptic number.

It is an amenable number.

13511404456 is an abundant number, since it is smaller than the sum of its proper divisors (14383868024).

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

13511404456 is a wasteful number, since it uses less digits than its factorization.

13511404456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435065 (or 1435061 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 13511404456 its reverse (65440411531), we get a palindrome (78951815987).

The spelling of 13511404456 in words is "thirteen billion, five hundred eleven million, four hundred four thousand, four hundred fifty-six".