7271121662 has 12 divisors (see below), whose sum is σ = 12687365520. Its totient is φ = 3116194956.

The previous prime is 7271121607. The next prime is 7271121701. The reversal of 7271121662 is 2661211727.

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 5 ways as a sum of consecutive naturals, for example, 37097462 + ... + 37097657.

It is an arithmetic number, because the mean of its divisors is an integer number (1057280460).

Almost surely, 2^7271121662 is an apocalyptic number.

7271121662 is a deficient number, since it is larger than the sum of its proper divisors (5416243858).

7271121662 is a wasteful number, since it uses less digits than its factorization.

7271121662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74195135 (or 74195128 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 7271121662 is about 85270.8722952920. The cubic root of 7271121662 is about 1937.3160232774.

The spelling of 7271121662 in words is "seven billion, two hundred seventy-one million, one hundred twenty-one thousand, six hundred sixty-two".