2731557156343 has 8 divisors (see below), whose sum is σ = 2789882486208. Its totient is φ = 2673240455424.

The previous prime is 2731557156313. The next prime is 2731557156353. The reversal of 2731557156343 is 3436517551372.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2731557156343 - 2¹⁷ = 2731557025271 is a prime.

It is a super-2 number, since 2×2731557156343² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731557156313) 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, 1515346 + ... + 2785567.

It is an arithmetic number, because the mean of its divisors is an integer number (348735310776).

Almost surely, 2^{2731557156343} is an apocalyptic number.

2731557156343 is a deficient number, since it is larger than the sum of its proper divisors (58325329865).

2731557156343 is a wasteful number, since it uses less digits than its factorization.

2731557156343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314473.

The product of its digits is 7938000, while the sum is 52.

The spelling of 2731557156343 in words is "two trillion, seven hundred thirty-one billion, five hundred fifty-seven million, one hundred fifty-six thousand, three hundred forty-three".