1025204547171 has 96 divisors (see below), whose sum is σ = 1643131284480. Its totient is φ = 566721792000.

The previous prime is 1025204547139. The next prime is 1025204547193. The reversal of 1025204547171 is 1717454025201.

It is not a de Polignac number, because 1025204547171 - 2⁵ = 1025204547139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025204547131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 113768056 + ... + 113777066.

It is an arithmetic number, because the mean of its divisors is an integer number (17115950880).

Almost surely, 2^{1025204547171} is an apocalyptic number.

1025204547171 is a deficient number, since it is larger than the sum of its proper divisors (617926737309).

1025204547171 is a wasteful number, since it uses less digits than its factorization.

1025204547171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305 (or 9298 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The spelling of 1025204547171 in words is "one trillion, twenty-five billion, two hundred four million, five hundred forty-seven thousand, one hundred seventy-one".