13551147272 has 32 divisors (see below), whose sum is σ = 27879185880. Its totient is φ = 6136366080.

The previous prime is 13551147271. The next prime is 13551147283. The reversal of 13551147272 is 27274115531.

It can be written as a sum of positive squares in 4 ways, for example, as 8194956676 + 5356190596 = 90526^2 + 73186^2 .

It is not an unprimeable number, because it can be changed into a prime (13551147271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223729 + ... + 1234752.

Almost surely, 2^13551147272 is an apocalyptic number.

It is an amenable number.

13551147272 is an abundant number, since it is smaller than the sum of its proper divisors (14328038608).

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

13551147272 is a wasteful number, since it uses less digits than its factorization.

13551147272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458553 (or 2458549 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The spelling of 13551147272 in words is "thirteen billion, five hundred fifty-one million, one hundred forty-seven thousand, two hundred seventy-two".