289746408378 has 64 divisors (see below), whose sum is σ = 669524244480. Its totient is φ = 81880811712.

The previous prime is 289746408377. The next prime is 289746408379. The reversal of 289746408378 is 873804647982.

It is an interprime number because it is at equal distance from previous prime (289746408377) and next prime (289746408379).

It is not an unprimeable number, because it can be changed into a prime (289746408377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3537108 + ... + 3618096.

It is an arithmetic number, because the mean of its divisors is an integer number (10461316320).

Almost surely, 2^289746408378 is an apocalyptic number.

289746408378 is an abundant number, since it is smaller than the sum of its proper divisors (379777836102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289746408378 is a wasteful number, since it uses less digits than its factorization.

289746408378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81931.

The product of its (nonzero) digits is 130056192, while the sum is 66.

The spelling of 289746408378 in words is "two hundred eighty-nine billion, seven hundred forty-six million, four hundred eight thousand, three hundred seventy-eight".