7207072646 has 16 divisors (see below), whose sum is σ = 10927598976. Its totient is φ = 3564577536.

The previous prime is 7207072627. The next prime is 7207072651. The reversal of 7207072646 is 6462707027.

It is a super-2 number, since 2×7207072646² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425675 + ... + 442281.

It is an arithmetic number, because the mean of its divisors is an integer number (682974936).

Almost surely, 2^7207072646 is an apocalyptic number.

7207072646 is a deficient number, since it is larger than the sum of its proper divisors (3720526330).

7207072646 is a wasteful number, since it uses less digits than its factorization.

7207072646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18943.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 7207072646 is about 84894.4794789390. The cubic root of 7207072646 is about 1931.6108367971.

The spelling of 7207072646 in words is "seven billion, two hundred seven million, seventy-two thousand, six hundred forty-six".