289473976346 has 4 divisors (see below), whose sum is σ = 434210964522. Its totient is φ = 144736988172.

The previous prime is 289473976343. The next prime is 289473976349. The reversal of 289473976346 is 643679374982.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (289473976343) and next prime (289473976349).

It can be written as a sum of positive squares in only one way, i.e., 188342980225 + 101130996121 = 433985^2 + 318011^2 .

It is not an unprimeable number, because it can be changed into a prime (289473976343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72368494085 + ... + 72368494088.

Almost surely, 2^289473976346 is an apocalyptic number.

289473976346 is a deficient number, since it is larger than the sum of its proper divisors (144736988176).

289473976346 is a wasteful number, since it uses less digits than its factorization.

289473976346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144736988175.

The product of its digits is 329204736, while the sum is 68.

The spelling of 289473976346 in words is "two hundred eighty-nine billion, four hundred seventy-three million, nine hundred seventy-six thousand, three hundred forty-six".