13504543051 has 16 divisors (see below), whose sum is σ = 14023369728. Its totient is φ = 12991154400.

The previous prime is 13504542979. The next prime is 13504543067. The reversal of 13504543051 is 15034540531.

It is a cyclic number.

It is not a de Polignac number, because 13504543051 - 2²¹ = 13502445899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13504544051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4214616 + ... + 4217818.

It is an arithmetic number, because the mean of its divisors is an integer number (876460608).

Almost surely, 2^13504543051 is an apocalyptic number.

13504543051 is a deficient number, since it is larger than the sum of its proper divisors (518826677).

13504543051 is a wasteful number, since it uses less digits than its factorization.

13504543051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 13504543051 in words is "thirteen billion, five hundred four million, five hundred forty-three thousand, fifty-one".