2731451646553 has 16 divisors (see below), whose sum is σ = 3123440801280. Its totient is φ = 2339908353216.

The previous prime is 2731451646499. The next prime is 2731451646569. The reversal of 2731451646553 is 3556461541372.

It is not a de Polignac number, because 2731451646553 - 2²¹ = 2731449549401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2731451646553.

It is not an unprimeable number, because it can be changed into a prime (2731451647553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100863651 + ... + 100890727.

It is an arithmetic number, because the mean of its divisors is an integer number (195215050080).

Almost surely, 2^{2731451646553} is an apocalyptic number.

It is an amenable number.

2731451646553 is a deficient number, since it is larger than the sum of its proper divisors (391989154727).

2731451646553 is a wasteful number, since it uses less digits than its factorization.

2731451646553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34776.

The product of its digits is 9072000, while the sum is 52.

The spelling of 2731451646553 in words is "two trillion, seven hundred thirty-one billion, four hundred fifty-one million, six hundred forty-six thousand, five hundred fifty-three".