74560078149 has 16 divisors (see below), whose sum is σ = 99576267840. Its totient is φ = 49625356160.

The previous prime is 74560078147. The next prime is 74560078199. The reversal of 74560078149 is 94187006547.

It is a cyclic number.

It is not a de Polignac number, because 74560078149 - 2¹ = 74560078147 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74560078147) 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, 8409979 + ... + 8418839.

It is an arithmetic number, because the mean of its divisors is an integer number (6223516740).

Almost surely, 2^74560078149 is an apocalyptic number.

It is an amenable number.

74560078149 is a deficient number, since it is larger than the sum of its proper divisors (25016189691).

74560078149 is a wasteful number, since it uses less digits than its factorization.

74560078149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13140.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 74560078149 in words is "seventy-four billion, five hundred sixty million, seventy-eight thousand, one hundred forty-nine".