7216742736 has 120 divisors (see below), whose sum is σ = 24096791040. Its totient is φ = 2061920448.

The previous prime is 7216742717. The next prime is 7216742783. The reversal of 7216742736 is 6372476127.

7216742736 is a `hidden beast` number, since 7 + 216 + 7 + 427 + 3 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 7216742691 and 7216742700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149296 + ... + 191631.

It is an arithmetic number, because the mean of its divisors is an integer number (200806592).

Almost surely, 2^7216742736 is an apocalyptic number.

It is an amenable number.

7216742736 is an abundant number, since it is smaller than the sum of its proper divisors (16880048304).

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

7216742736 is a wasteful number, since it uses less digits than its factorization.

7216742736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340958 (or 340939 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 7216742736 is about 84951.4139729293. The cubic root of 7216742736 is about 1932.4743636713.

The spelling of 7216742736 in words is "seven billion, two hundred sixteen million, seven hundred forty-two thousand, seven hundred thirty-six".