742778895049652 has 12 divisors (see below), whose sum is σ = 1299869867082276. Its totient is φ = 371387504454720.

The previous prime is 742778895049651. The next prime is 742778895049687. The reversal of 742778895049652 is 256940598877247.

It is a happy number.

742778895049652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33059671060516 + 709719223989136 = 5749754^2 + 26640556^2 .

It is a super-2 number, since 2×742778895049652² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742778895049651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484907249 + ... + 486436632.

It is an arithmetic number, because the mean of its divisors is an integer number (108322488923523).

Almost surely, 2^{742778895049652} is an apocalyptic number.

It is an amenable number.

742778895049652 is a deficient number, since it is larger than the sum of its proper divisors (557090972032624).

742778895049652 is a wasteful number, since it uses less digits than its factorization.

742778895049652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971535058 (or 971535056 counting only the distinct ones).

The product of its (nonzero) digits is 17069875200, while the sum is 83.

The spelling of 742778895049652 in words is "seven hundred forty-two trillion, seven hundred seventy-eight billion, eight hundred ninety-five million, forty-nine thousand, six hundred fifty-two".