7273831649 has 16 divisors (see below), whose sum is σ = 8647689600. Its totient is φ = 5986063104.

The previous prime is 7273831639. The next prime is 7273831651. The reversal of 7273831649 is 9461383727.

It is a de Polignac number, because none of the positive numbers 2^k-7273831649 is a prime.

It is a super-3 number, since 3×7273831649³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7273831597 and 7273831606.

It is not an unprimeable number, because it can be changed into a prime (7273831619) 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, 63752 + ... + 136425.

It is an arithmetic number, because the mean of its divisors is an integer number (540480600).

Almost surely, 2^7273831649 is an apocalyptic number.

It is an amenable number.

7273831649 is a deficient number, since it is larger than the sum of its proper divisors (1373857951).

7273831649 is a wasteful number, since it uses less digits than its factorization.

7273831649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200392.

The product of its digits is 1524096, while the sum is 50.

The square root of 7273831649 is about 85286.7612762966. The cubic root of 7273831649 is about 1937.5566761582.

The spelling of 7273831649 in words is "seven billion, two hundred seventy-three million, eight hundred thirty-one thousand, six hundred forty-nine".