2731573021005 has 96 divisors (see below), whose sum is σ = 5011730380800. Its totient is φ = 1374574219776.

The previous prime is 2731573021003. The next prime is 2731573021019. The reversal of 2731573021005 is 5001203751372.

It is a happy number.

2731573021005 is a `hidden beast` number, since 2 + 73 + 1 + 573 + 0 + 2 + 10 + 0 + 5 = 666.

It is not a de Polignac number, because 2731573021005 - 2¹ = 2731573021003 is a prime.

It is a super-2 number, since 2×2731573021005² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731573021003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8369676 + ... + 8689914.

It is an arithmetic number, because the mean of its divisors is an integer number (52205524800).

Almost surely, 2^{2731573021005} is an apocalyptic number.

It is an amenable number.

2731573021005 is a deficient number, since it is larger than the sum of its proper divisors (2280157359795).

2731573021005 is a wasteful number, since it uses less digits than its factorization.

2731573021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320443 (or 320440 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

Adding to 2731573021005 its reverse (5001203751372), we get a palindrome (7732776772377).

The spelling of 2731573021005 in words is "two trillion, seven hundred thirty-one billion, five hundred seventy-three million, twenty-one thousand, five".