6545310894625 has 8 divisors (see below), whose sum is σ = 8168547996648. Its totient is φ = 5236248715600.

The previous prime is 6545310894601. The next prime is 6545310894641. The reversal of 6545310894625 is 5264980135456.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11336499729 + 6533974394896 = 106473^2 + 2556164^2 .

It is not a de Polignac number, because 6545310894625 - 2²¹ = 6545308797473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6545310894625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26181243454 + ... + 26181243703.

It is an arithmetic number, because the mean of its divisors is an integer number (1021068499581).

Almost surely, 2^{6545310894625} is an apocalyptic number.

It is an amenable number.

6545310894625 is a deficient number, since it is larger than the sum of its proper divisors (1623237102023).

6545310894625 is an equidigital number, since it uses as much as digits as its factorization.

6545310894625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52362487172 (or 52362487162 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 58.

The spelling of 6545310894625 in words is "six trillion, five hundred forty-five billion, three hundred ten million, eight hundred ninety-four thousand, six hundred twenty-five".