7212971653 has 8 divisors (see below), whose sum is σ = 7666318400. Its totient is φ = 6766996608.

The previous prime is 7212971627. The next prime is 7212971683. The reversal of 7212971653 is 3561792127.

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

It is a cyclic number.

It is not a de Polignac number, because 7212971653 - 2⁹ = 7212971141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212971683) 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, 1840908 + ... + 1844821.

It is an arithmetic number, because the mean of its divisors is an integer number (958289800).

Almost surely, 2^7212971653 is an apocalyptic number.

It is an amenable number.

7212971653 is a deficient number, since it is larger than the sum of its proper divisors (453346747).

7212971653 is a wasteful number, since it uses less digits than its factorization.

7212971653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685851.

The product of its digits is 158760, while the sum is 43.

The square root of 7212971653 is about 84929.2155444756. The cubic root of 7212971653 is about 1932.1377025111.

The spelling of 7212971653 in words is "seven billion, two hundred twelve million, nine hundred seventy-one thousand, six hundred fifty-three".