7273734636 has 144 divisors (see below), whose sum is σ = 20707142400. Its totient is φ = 1977655680.

The previous prime is 7273734619. The next prime is 7273734653. The reversal of 7273734636 is 6364373727.

It is an interprime number because it is at equal distance from previous prime (7273734619) and next prime (7273734653).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2852290 + ... + 2854838.

It is an arithmetic number, because the mean of its divisors is an integer number (143799600).

Almost surely, 2^7273734636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7273734636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10353571200).

7273734636 is an abundant number, since it is smaller than the sum of its proper divisors (13433407764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7273734636 is a wasteful number, since it uses less digits than its factorization.

7273734636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804 (or 2795 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 48.

The square root of 7273734636 is about 85286.1925284509. The cubic root of 7273734636 is about 1937.5480622195.

The spelling of 7273734636 in words is "seven billion, two hundred seventy-three million, seven hundred thirty-four thousand, six hundred thirty-six".