7217158011 has 16 divisors (see below), whose sum is σ = 11222016000. Its totient is φ = 4124089704.

The previous prime is 7217157989. The next prime is 7217158043. The reversal of 7217158011 is 1108517127.

It is not a de Polignac number, because 7217158011 - 2⁶ = 7217157947 is a prime.

It is a super-3 number, since 3×7217158011³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7217158811) 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, 3505851 + ... + 3507908.

It is an arithmetic number, because the mean of its divisors is an integer number (701376000).

Almost surely, 2^7217158011 is an apocalyptic number.

7217158011 is a deficient number, since it is larger than the sum of its proper divisors (4004857989).

7217158011 is an equidigital number, since it uses as much as digits as its factorization.

7217158011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013783 (or 7013769 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 33.

The square root of 7217158011 is about 84953.8581289867. The cubic root of 7217158011 is about 1932.5114299271.

The spelling of 7217158011 in words is "seven billion, two hundred seventeen million, one hundred fifty-eight thousand, eleven".