742122739670 has 96 divisors (see below), whose sum is σ = 1464950914560. Its totient is φ = 269073342720.

The previous prime is 742122739669. The next prime is 742122739681. The reversal of 742122739670 is 76937221247.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154961636 + ... + 154966424.

It is an arithmetic number, because the mean of its divisors is an integer number (15259905360).

Almost surely, 2^742122739670 is an apocalyptic number.

742122739670 is a deficient number, since it is larger than the sum of its proper divisors (722828174890).

742122739670 is a wasteful number, since it uses less digits than its factorization.

742122739670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 5079 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 742122739670 in words is "seven hundred forty-two billion, one hundred twenty-two million, seven hundred thirty-nine thousand, six hundred seventy".