169942519408 has 20 divisors (see below), whose sum is σ = 329332966480. Its totient is φ = 84953366784.

The previous prime is 169942519399. The next prime is 169942519421. The reversal of 169942519408 is 804915249961.

It is a congruent number.

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, 1039785 + ... + 1192072.

It is an arithmetic number, because the mean of its divisors is an integer number (16466648324).

Almost surely, 2^169942519408 is an apocalyptic number.

It is an amenable number.

169942519408 is a deficient number, since it is larger than the sum of its proper divisors (159390447072).

169942519408 is a wasteful number, since it uses less digits than its factorization.

169942519408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236624 (or 2236618 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 169942519408 in words is "one hundred sixty-nine billion, nine hundred forty-two million, five hundred nineteen thousand, four hundred eight".