13511481354 has 24 divisors (see below), whose sum is σ = 33457001760. Its totient is φ = 3860423208.

The previous prime is 13511481329. The next prime is 13511481377. The reversal of 13511481354 is 45318411531.

13511481354 is a `hidden beast` number, since 1 + 3 + 511 + 4 + 8 + 135 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53616864 + ... + 53617115.

It is an arithmetic number, because the mean of its divisors is an integer number (1394041740).

Almost surely, 2^13511481354 is an apocalyptic number.

13511481354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13511481354 is an abundant number, since it is smaller than the sum of its proper divisors (19945520406).

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

13511481354 is a wasteful number, since it uses less digits than its factorization.

13511481354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107233994 (or 107233991 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

Adding to 13511481354 its reverse (45318411531), we get a palindrome (58829892885).

The spelling of 13511481354 in words is "thirteen billion, five hundred eleven million, four hundred eighty-one thousand, three hundred fifty-four".