2609845752725 has 48 divisors (see below), whose sum is σ = 3468783787200. Its totient is φ = 1941931537920.

The previous prime is 2609845752719. The next prime is 2609845752727. The reversal of 2609845752725 is 5272575489062.

It is not a de Polignac number, because 2609845752725 - 2³⁸ = 2334967845781 is a prime.

It is a super-2 number, since 2×2609845752725² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609845752727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21603089 + ... + 21723561.

It is an arithmetic number, because the mean of its divisors is an integer number (72266328900).

Almost surely, 2^{2609845752725} is an apocalyptic number.

2609845752725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2609845752725 is a deficient number, since it is larger than the sum of its proper divisors (858938034475).

2609845752725 is a wasteful number, since it uses less digits than its factorization.

2609845752725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121334 (or 121329 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 62.

The spelling of 2609845752725 in words is "two trillion, six hundred nine billion, eight hundred forty-five million, seven hundred fifty-two thousand, seven hundred twenty-five".