15481356354 has 24 divisors (see below), whose sum is σ = 33593710332. Its totient is φ = 5152641120.

The previous prime is 15481356353. The next prime is 15481356377. The reversal of 15481356354 is 45365318451.

15481356354 is a `hidden beast` number, since 1 + 5 + 4 + 8 + 1 + 3 + 5 + 635 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15251015025 + 230341329 = 123495^2 + 15177^2 .

It is not an unprimeable number, because it can be changed into a prime (15481356353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638689 + ... + 662484.

Almost surely, 2^15481356354 is an apocalyptic number.

15481356354 is an abundant number, since it is smaller than the sum of its proper divisors (18112353978).

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

15481356354 is a wasteful number, since it uses less digits than its factorization.

15481356354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301842 (or 1301839 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 15481356354 in words is "fifteen billion, four hundred eighty-one million, three hundred fifty-six thousand, three hundred fifty-four".