239469489057 has 16 divisors (see below), whose sum is σ = 319670668800. Its totient is φ = 159457392000.

The previous prime is 239469489029. The next prime is 239469489079. The reversal of 239469489057 is 750984964932.

It is not a de Polignac number, because 239469489057 - 2¹⁹ = 239468964769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239469489757) 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, 24859632 + ... + 24869262.

It is an arithmetic number, because the mean of its divisors is an integer number (19979416800).

Almost surely, 2^239469489057 is an apocalyptic number.

It is an amenable number.

239469489057 is a deficient number, since it is larger than the sum of its proper divisors (80201179743).

239469489057 is a wasteful number, since it uses less digits than its factorization.

239469489057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18584.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 239469489057 in words is "two hundred thirty-nine billion, four hundred sixty-nine million, four hundred eighty-nine thousand, fifty-seven".