7266057721715 has 16 divisors (see below), whose sum is σ = 9692884943616. Its totient is φ = 5192616931200.

The previous prime is 7266057721669. The next prime is 7266057721739. The reversal of 7266057721715 is 5171277506627.

It is not a de Polignac number, because 7266057721715 - 2¹⁸ = 7266057459571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1802989976 + ... + 1802994005.

It is an arithmetic number, because the mean of its divisors is an integer number (605805308976).

Almost surely, 2^{7266057721715} is an apocalyptic number.

7266057721715 is a deficient number, since it is larger than the sum of its proper divisors (2426827221901).

7266057721715 is a wasteful number, since it uses less digits than its factorization.

7266057721715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605984030.

The product of its (nonzero) digits is 8643600, while the sum is 56.

The spelling of 7266057721715 in words is "seven trillion, two hundred sixty-six billion, fifty-seven million, seven hundred twenty-one thousand, seven hundred fifteen".