239389109071840 has 96 divisors (see below), whose sum is σ = 696069871035840. Its totient is φ = 75762707042304.

The previous prime is 239389109071837. The next prime is 239389109071943. The reversal of 239389109071840 is 48170901983932.

It is a congruent number.

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, 8220765285 + ... + 8220794404.

It is an arithmetic number, because the mean of its divisors is an integer number (7250727823290).

Almost surely, 2^{239389109071840} is an apocalyptic number.

239389109071840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239389109071840 is an abundant number, since it is smaller than the sum of its proper divisors (456680761964000).

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

239389109071840 is a wasteful number, since it uses less digits than its factorization.

239389109071840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16441559724 (or 16441559716 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 239389109071840 in words is "two hundred thirty-nine trillion, three hundred eighty-nine billion, one hundred nine million, seventy-one thousand, eight hundred forty".