7216907290 has 8 divisors (see below), whose sum is σ = 12990433140. Its totient is φ = 2886762912.

The previous prime is 7216907287. The next prime is 7216907323. The reversal of 7216907290 is 927096127.

It can be written as a sum of positive squares in 2 ways, for example, as 7085093929 + 131813361 = 84173^2 + 11481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360845355 + ... + 360845374.

Almost surely, 2^7216907290 is an apocalyptic number.

7216907290 is a deficient number, since it is larger than the sum of its proper divisors (5773525850).

7216907290 is a wasteful number, since it uses less digits than its factorization.

7216907290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721690736.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 7216907290 is about 84952.3824857196. The cubic root of 7216907290 is about 1932.4890514596.

The spelling of 7216907290 in words is "seven billion, two hundred sixteen million, nine hundred seven thousand, two hundred ninety".