7212621547072 has 56 divisors (see below), whose sum is σ = 14589196221600. Its totient is φ = 3537228788736.

The previous prime is 7212621547057. The next prime is 7212621547207. The reversal of 7212621547072 is 2707451262127.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4145797 + ... + 5622532.

It is an arithmetic number, because the mean of its divisors is an integer number (260521361100).

Almost surely, 2^{7212621547072} is an apocalyptic number.

It is an amenable number.

7212621547072 is an abundant number, since it is smaller than the sum of its proper divisors (7376574674528).

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

7212621547072 is a wasteful number, since it uses less digits than its factorization.

7212621547072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9768563 (or 9768553 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 7212621547072 in words is "seven trillion, two hundred twelve billion, six hundred twenty-one million, five hundred forty-seven thousand, seventy-two".