7215206651 has 8 divisors (see below), whose sum is σ = 7532852640. Its totient is φ = 6897889152.

The previous prime is 7215206599. The next prime is 7215206689. The reversal of 7215206651 is 1566025127.

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

It is not a de Polignac number, because 7215206651 - 2⁶ = 7215206587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7215203651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36686 + ... + 125603.

It is an arithmetic number, because the mean of its divisors is an integer number (941606580).

Almost surely, 2^7215206651 is an apocalyptic number.

7215206651 is a deficient number, since it is larger than the sum of its proper divisors (317645989).

7215206651 is a wasteful number, since it uses less digits than its factorization.

7215206651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164245.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 7215206651 is about 84942.3725298511. The cubic root of 7215206651 is about 1932.3372447693.

The spelling of 7215206651 in words is "seven billion, two hundred fifteen million, two hundred six thousand, six hundred fifty-one".