742655323556247 has 8 divisors (see below), whose sum is σ = 991428068606080. Its totient is φ = 494493063771960.

The previous prime is 742655323556243. The next prime is 742655323556249.

742655323556247 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 742655323556247 - 2² = 742655323556243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742655323556243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152621313547 + ... + 152621318412.

It is an arithmetic number, because the mean of its divisors is an integer number (123928508575760).

Almost surely, 2^{742655323556247} is an apocalyptic number.

742655323556247 is a deficient number, since it is larger than the sum of its proper divisors (248772745049833).

742655323556247 is a wasteful number, since it uses less digits than its factorization.

742655323556247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305242632773.

The product of its digits is 1270080000, while the sum is 66.

The spelling of 742655323556247 in words is "seven hundred forty-two trillion, six hundred fifty-five billion, three hundred twenty-three million, five hundred fifty-six thousand, two hundred forty-seven".