742778895049667 has 8 divisors (see below), whose sum is σ = 848890334073600. Its totient is φ = 636667498101384.

The previous prime is 742778895049651. The next prime is 742778895049687. The reversal of 742778895049667 is 766940598877247.

742778895049667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742778895049667 - 2⁴ = 742778895049651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742778895049627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52399184 + ... + 65047922.

It is an arithmetic number, because the mean of its divisors is an integer number (106111291759200).

Almost surely, 2^{742778895049667} is an apocalyptic number.

742778895049667 is a deficient number, since it is larger than the sum of its proper divisors (106111439023933).

742778895049667 is a wasteful number, since it uses less digits than its factorization.

742778895049667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21037825.

The product of its (nonzero) digits is 71693475840, while the sum is 89.

The spelling of 742778895049667 in words is "seven hundred forty-two trillion, seven hundred seventy-eight billion, eight hundred ninety-five million, forty-nine thousand, six hundred sixty-seven".