289879451690 has 16 divisors (see below), whose sum is σ = 521791826400. Its totient is φ = 115949822160.

The previous prime is 289879451663. The next prime is 289879451713. The reversal of 289879451690 is 96154978982.

It is a super-2 number, since 2×289879451690² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 289879451690.

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, 478625 + ... + 899355.

It is an arithmetic number, because the mean of its divisors is an integer number (32611989150).

Almost surely, 2^289879451690 is an apocalyptic number.

289879451690 is a deficient number, since it is larger than the sum of its proper divisors (231912374710).

289879451690 is a wasteful number, since it uses less digits than its factorization.

289879451690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489637.

The product of its (nonzero) digits is 78382080, while the sum is 68.

The spelling of 289879451690 in words is "two hundred eighty-nine billion, eight hundred seventy-nine million, four hundred fifty-one thousand, six hundred ninety".