489702386842 has 8 divisors (see below), whose sum is σ = 735026574996. Its totient is φ = 244693528512.

The previous prime is 489702386839. The next prime is 489702386879. The reversal of 489702386842 is 248683207984.

It can be written as a sum of positive squares in 2 ways, for example, as 489455551321 + 246835521 = 699611^2 + 15711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78828573 + ... + 78834784.

Almost surely, 2^489702386842 is an apocalyptic number.

489702386842 is a deficient number, since it is larger than the sum of its proper divisors (245324188154).

489702386842 is a wasteful number, since it uses less digits than its factorization.

489702386842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157664912.

The product of its (nonzero) digits is 37158912, while the sum is 61.

The spelling of 489702386842 in words is "four hundred eighty-nine billion, seven hundred two million, three hundred eighty-six thousand, eight hundred forty-two".