742722712245 has 96 divisors (see below), whose sum is σ = 1330706437632. Its totient is φ = 382985680896.

The previous prime is 742722712243. The next prime is 742722712247. The reversal of 742722712245 is 542217227247.

742722712245 is a `hidden beast` number, since 74 + 2 + 72 + 271 + 2 + 245 = 666.

It is an interprime number because it is at equal distance from previous prime (742722712243) and next prime (742722712247).

It is not a de Polignac number, because 742722712245 - 2¹ = 742722712243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 742722712245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742722712243) 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 95 ways as a sum of consecutive naturals, for example, 217997332 + ... + 218000738.

It is an arithmetic number, because the mean of its divisors is an integer number (13861525392).

Almost surely, 2^742722712245 is an apocalyptic number.

It is an amenable number.

742722712245 is a deficient number, since it is larger than the sum of its proper divisors (587983725387).

742722712245 is a wasteful number, since it uses less digits than its factorization.

742722712245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571 (or 4568 counting only the distinct ones).

The product of its digits is 878080, while the sum is 45.

The spelling of 742722712245 in words is "seven hundred forty-two billion, seven hundred twenty-two million, seven hundred twelve thousand, two hundred forty-five".