2731442445631 has 16 divisors (see below), whose sum is σ = 2868013915200. Its totient is φ = 2597763616000.

The previous prime is 2731442445587. The next prime is 2731442445647. The reversal of 2731442445631 is 1365442441372.

2731442445631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2731442445631 - 2³¹ = 2729294961983 is a prime.

It is a super-2 number, since 2×2731442445631² (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 (2731442445031) 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, 1685331 + ... + 2881531.

It is an arithmetic number, because the mean of its divisors is an integer number (179250869700).

Almost surely, 2^{2731442445631} is an apocalyptic number.

2731442445631 is a deficient number, since it is larger than the sum of its proper divisors (136571469569).

2731442445631 is a wasteful number, since it uses less digits than its factorization.

2731442445631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197410.

The product of its digits is 1935360, while the sum is 46.

The spelling of 2731442445631 in words is "two trillion, seven hundred thirty-one billion, four hundred forty-two million, four hundred forty-five thousand, six hundred thirty-one".