289338725778537 has 16 divisors (see below), whose sum is σ = 393993936794880. Its totient is φ = 188788015521792.

The previous prime is 289338725778533. The next prime is 289338725778623. The reversal of 289338725778537 is 735877527833982.

It is not a de Polignac number, because 289338725778537 - 2² = 289338725778533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289338725778537.

It is not an unprimeable number, because it can be changed into a prime (289338725778533) 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, 81878889 + ... + 85339497.

It is an arithmetic number, because the mean of its divisors is an integer number (24624621049680).

Almost surely, 2^{289338725778537} is an apocalyptic number.

It is an amenable number.

289338725778537 is a deficient number, since it is larger than the sum of its proper divisors (104655211016343).

289338725778537 is a wasteful number, since it uses less digits than its factorization.

289338725778537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053632.

The product of its digits is 29872281600, while the sum is 84.

The spelling of 289338725778537 in words is "two hundred eighty-nine trillion, three hundred thirty-eight billion, seven hundred twenty-five million, seven hundred seventy-eight thousand, five hundred thirty-seven".