742184391272 has 8 divisors (see below), whose sum is σ = 1391595733650. Its totient is φ = 371092195632.

The previous prime is 742184391257. The next prime is 742184391281. The reversal of 742184391272 is 272193481247.

It can be written as a sum of positive squares in only one way, i.e., 718822491556 + 23361899716 = 847834^2 + 152846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 742184391272.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46386524447 + ... + 46386524462.

Almost surely, 2^742184391272 is an apocalyptic number.

It is an amenable number.

742184391272 is a deficient number, since it is larger than the sum of its proper divisors (649411342378).

742184391272 is a wasteful number, since it uses less digits than its factorization.

742184391272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92773048915 (or 92773048911 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The spelling of 742184391272 in words is "seven hundred forty-two billion, one hundred eighty-four million, three hundred ninety-one thousand, two hundred seventy-two".