74297758161 has 8 divisors (see below), whose sum is σ = 108069466464. Its totient is φ = 45028944320.

The previous prime is 74297758147. The next prime is 74297758243. The reversal of 74297758161 is 16185779247.

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 74297758161 - 2⁹ = 74297757649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74297750161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125723576 + ... + 1125723641.

It is an arithmetic number, because the mean of its divisors is an integer number (13508683308).

Almost surely, 2^74297758161 is an apocalyptic number.

It is an amenable number.

74297758161 is a deficient number, since it is larger than the sum of its proper divisors (33771708303).

74297758161 is a wasteful number, since it uses less digits than its factorization.

74297758161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251447231.

The product of its digits is 5927040, while the sum is 57.

The spelling of 74297758161 in words is "seventy-four billion, two hundred ninety-seven million, seven hundred fifty-eight thousand, one hundred sixty-one".