1625732260073 has 4 divisors (see below), whose sum is σ = 1635129556548. Its totient is φ = 1616334963600.

The previous prime is 1625732260069. The next prime is 1625732260081. The reversal of 1625732260073 is 3700622375261.

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 1463042650969 + 162689609104 = 1209563^2 + 403348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625732260073 - 2² = 1625732260069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1625732260043) 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 3 ways as a sum of consecutive naturals, for example, 4698647978 + ... + 4698648323.

It is an arithmetic number, because the mean of its divisors is an integer number (408782389137).

Almost surely, 2^{1625732260073} is an apocalyptic number.

It is an amenable number.

1625732260073 is a deficient number, since it is larger than the sum of its proper divisors (9397296475).

1625732260073 is an equidigital number, since it uses as much as digits as its factorization.

1625732260073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9397296474.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 1625732260073 in words is "one trillion, six hundred twenty-five billion, seven hundred thirty-two million, two hundred sixty thousand, seventy-three".