742181128284 has 48 divisors (see below), whose sum is σ = 1821278527488. Its totient is φ = 234774163008.

The previous prime is 742181128279. The next prime is 742181128379. The reversal of 742181128284 is 482821181247.

It is a super-2 number, since 2×742181128284² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10551807 + ... + 10621910.

It is an arithmetic number, because the mean of its divisors is an integer number (37943302656).

Almost surely, 2^742181128284 is an apocalyptic number.

It is an amenable number.

742181128284 is an abundant number, since it is smaller than the sum of its proper divisors (1079097399204).

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

742181128284 is a wasteful number, since it uses less digits than its factorization.

742181128284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21173874 (or 21173872 counting only the distinct ones).

The product of its digits is 458752, while the sum is 48.

The spelling of 742181128284 in words is "seven hundred forty-two billion, one hundred eighty-one million, one hundred twenty-eight thousand, two hundred eighty-four".