73449270765025 has 27 divisors (see below), whose sum is σ = 92116715132281. Its totient is φ = 58096181718080.

The previous prime is 73449270764959. The next prime is 73449270765029. The reversal of 73449270765025 is 52056707294437.

The square root of 73449270765025 is 8570255.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 15284792318929 + 58164478446096 = 3909577^2 + 7626564^2 .

It is not a de Polignac number, because 73449270765025 - 2¹¹ = 73449270762977 is a prime.

It is a super-2 number, since 2×73449270765025² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73449270765029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3813753846 + ... + 3813773104.

Almost surely, 2^{73449270765025} is an apocalyptic number.

73449270765025 is the 8570255-th square number.

73449270765025 is the 4285128-th centered octagonal number.

It is an amenable number.

73449270765025 is a deficient number, since it is larger than the sum of its proper divisors (18667444367256).

73449270765025 is an frugal number, since it uses more digits than its factorization.

73449270765025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38706 (or 19353 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 61.

The spelling of 73449270765025 in words is "seventy-three trillion, four hundred forty-nine billion, two hundred seventy million, seven hundred sixty-five thousand, twenty-five".