7212858266240 has 128 divisors (see below), whose sum is σ = 19459455552000. Its totient is φ = 2532414115840.

The previous prime is 7212858266233. The next prime is 7212858266249. The reversal of 7212858266240 is 426628582127.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (7212858266249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17460560 + ... + 17868879.

It is an arithmetic number, because the mean of its divisors is an integer number (152026996500).

Almost surely, 2^{7212858266240} is an apocalyptic number.

It is an amenable number.

7212858266240 is an abundant number, since it is smaller than the sum of its proper divisors (12246597285760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7212858266240 is a wasteful number, since it uses less digits than its factorization.

7212858266240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35329498 (or 35329486 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 7212858266240 in words is "seven trillion, two hundred twelve billion, eight hundred fifty-eight million, two hundred sixty-six thousand, two hundred forty".