289061725285 has 16 divisors (see below), whose sum is σ = 365752699200. Its totient is φ = 218705101056.

The previous prime is 289061725261. The next prime is 289061725297. The reversal of 289061725285 is 582527160982.

It is a cyclic number.

It is not a de Polignac number, because 289061725285 - 2²¹ = 289059628133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2536020 + ... + 2647549.

It is an arithmetic number, because the mean of its divisors is an integer number (22859543700).

Almost surely, 2^289061725285 is an apocalyptic number.

It is an amenable number.

289061725285 is a deficient number, since it is larger than the sum of its proper divisors (76690973915).

289061725285 is a wasteful number, since it uses less digits than its factorization.

289061725285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184180.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 289061725285 in words is "two hundred eighty-nine billion, sixty-one million, seven hundred twenty-five thousand, two hundred eighty-five".