231488189373842 has 32 divisors (see below), whose sum is σ = 356036828165424. Its totient is φ = 112814591411200.

The previous prime is 231488189373829. The next prime is 231488189373863. The reversal of 231488189373842 is 248373981884132.

It can be written as a sum of positive squares in 8 ways, for example, as 814941313081 + 230673248060761 = 902741^2 + 15187931^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972369248 + ... + 972607284.

Almost surely, 2^{231488189373842} is an apocalyptic number.

231488189373842 is a deficient number, since it is larger than the sum of its proper divisors (124548638791582).

231488189373842 is a wasteful number, since it uses less digits than its factorization.

231488189373842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249214.

The product of its digits is 445906944, while the sum is 71.

The spelling of 231488189373842 in words is "two hundred thirty-one trillion, four hundred eighty-eight billion, one hundred eighty-nine million, three hundred seventy-three thousand, eight hundred forty-two".