74730549275161 has 16 divisors (see below), whose sum is σ = 80583670249488. Its totient is φ = 68892387379200.

The previous prime is 74730549275147. The next prime is 74730549275189. The reversal of 74730549275161 is 16157294503747.

It can be written as a sum of positive squares in 8 ways, for example, as 3871276613136 + 70859272662025 = 1967556^2 + 8417795^2 .

It is a cyclic number.

It is not a de Polignac number, because 74730549275161 - 2¹⁷ = 74730549144089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74730549275161.

It is not an unprimeable number, because it can be changed into a prime (74730549275141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133100341 + ... + 133660621.

It is an arithmetic number, because the mean of its divisors is an integer number (5036479390593).

Almost surely, 2^{74730549275161} is an apocalyptic number.

It is an amenable number.

74730549275161 is a deficient number, since it is larger than the sum of its proper divisors (5853120974327).

74730549275161 is a wasteful number, since it uses less digits than its factorization.

74730549275161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573612.

The product of its (nonzero) digits is 44452800, while the sum is 61.

The spelling of 74730549275161 in words is "seventy-four trillion, seven hundred thirty billion, five hundred forty-nine million, two hundred seventy-five thousand, one hundred sixty-one".