742478441505168 has 20 divisors (see below), whose sum is σ = 1918069307221808. Its totient is φ = 247492813835040.

The previous prime is 742478441505161. The next prime is 742478441505169. The reversal of 742478441505168 is 861505144874247.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 742478441505099 and 742478441505108.

It is not an unprimeable number, because it can be changed into a prime (742478441505161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7734150432298 + ... + 7734150432393.

Almost surely, 2^{742478441505168} is an apocalyptic number.

It is an amenable number.

742478441505168 is an abundant number, since it is smaller than the sum of its proper divisors (1175590865716640).

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

742478441505168 is a wasteful number, since it uses less digits than its factorization.

742478441505168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15468300864702 (or 15468300864696 counting only the distinct ones).

The product of its (nonzero) digits is 240844800, while the sum is 66.

The spelling of 742478441505168 in words is "seven hundred forty-two trillion, four hundred seventy-eight billion, four hundred forty-one million, five hundred five thousand, one hundred sixty-eight".