97823280265 has 16 divisors (see below), whose sum is σ = 120573539856. Its totient is φ = 76145126400.

The previous prime is 97823280263. The next prime is 97823280287. The reversal of 97823280265 is 56208232879.

It can be written as a sum of positive squares in 8 ways, for example, as 25391785104 + 72431495161 = 159348^2 + 269131^2 .

It is not a de Polignac number, because 97823280265 - 2¹ = 97823280263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97823280263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563196 + ... + 716125.

It is an arithmetic number, because the mean of its divisors is an integer number (7535846241).

Almost surely, 2^97823280265 is an apocalyptic number.

It is an amenable number.

97823280265 is a deficient number, since it is larger than the sum of its proper divisors (22750259591).

97823280265 is a wasteful number, since it uses less digits than its factorization.

97823280265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279740.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 97823280265 in words is "ninety-seven billion, eight hundred twenty-three million, two hundred eighty thousand, two hundred sixty-five".