289329975490 has 16 divisors (see below), whose sum is σ = 522820396152. Its totient is φ = 115281670144.

The previous prime is 289329975461. The next prime is 289329975509. The reversal of 289329975490 is 94579923982.

It can be written as a sum of positive squares in 4 ways, for example, as 277479258169 + 11850717321 = 526763^2 + 108861^2 .

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, 56287309 + ... + 56292448.

Almost surely, 2^289329975490 is an apocalyptic number.

289329975490 is a deficient number, since it is larger than the sum of its proper divisors (233490420662).

289329975490 is a wasteful number, since it uses less digits than its factorization.

289329975490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112580021.

The product of its (nonzero) digits is 88179840, while the sum is 67.

The spelling of 289329975490 in words is "two hundred eighty-nine billion, three hundred twenty-nine million, nine hundred seventy-five thousand, four hundred ninety".