74320280245 has 16 divisors (see below), whose sum is σ = 92297986560. Its totient is φ = 57390321600.

The previous prime is 74320280233. The next prime is 74320280249. The reversal of 74320280245 is 54208202347.

It is a de Polignac number, because none of the positive numbers 2^k-74320280245 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74320280249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556011 + ... + 676600.

It is an arithmetic number, because the mean of its divisors is an integer number (5768624160).

Almost surely, 2^74320280245 is an apocalyptic number.

It is an amenable number.

74320280245 is a deficient number, since it is larger than the sum of its proper divisors (17977706315).

74320280245 is a wasteful number, since it uses less digits than its factorization.

74320280245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233036.

The product of its (nonzero) digits is 107520, while the sum is 37.

The spelling of 74320280245 in words is "seventy-four billion, three hundred twenty million, two hundred eighty thousand, two hundred forty-five".