289198948731 has 16 divisors (see below), whose sum is σ = 480746304768. Its totient is φ = 150233220000.

The previous prime is 289198948693. The next prime is 289198948741. The reversal of 289198948731 is 137849891982.

It is not a de Polignac number, because 289198948731 - 2¹³ = 289198940539 is a prime.

It is a super-2 number, since 2×289198948731² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289198948741) 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, 625971520 + ... + 625971981.

It is an arithmetic number, because the mean of its divisors is an integer number (30046644048).

Almost surely, 2^289198948731 is an apocalyptic number.

289198948731 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

289198948731 is a deficient number, since it is larger than the sum of its proper divisors (191547356037).

289198948731 is a wasteful number, since it uses less digits than its factorization.

289198948731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251943522.

The product of its digits is 62705664, while the sum is 69.

The spelling of 289198948731 in words is "two hundred eighty-nine billion, one hundred ninety-eight million, nine hundred forty-eight thousand, seven hundred thirty-one".