7236428650873 has 4 divisors (see below), whose sum is σ = 7335557810548. Its totient is φ = 7137299491200.

The previous prime is 7236428650861. The next prime is 7236428650879. The reversal of 7236428650873 is 3780568246327.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3151146871609 + 4085281779264 = 1775147^2 + 2021208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7236428650873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7236428650879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49564579728 + ... + 49564579873.

It is an arithmetic number, because the mean of its divisors is an integer number (1833889452637).

Almost surely, 2^{7236428650873} is an apocalyptic number.

7236428650873 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7236428650873 is a deficient number, since it is larger than the sum of its proper divisors (99129159675).

7236428650873 is an equidigital number, since it uses as much as digits as its factorization.

7236428650873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99129159674.

The product of its (nonzero) digits is 81285120, while the sum is 61.

The spelling of 7236428650873 in words is "seven trillion, two hundred thirty-six billion, four hundred twenty-eight million, six hundred fifty thousand, eight hundred seventy-three".