73627542209 has 8 divisors (see below), whose sum is σ = 79796241000. Its totient is φ = 67530992256.

The previous prime is 73627542203. The next prime is 73627542239. The reversal of 73627542209 is 90224572637.

It can be written as a sum of positive squares in 4 ways, for example, as 238023184 + 73389519025 = 15428^2 + 270905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73627542209 - 2¹² = 73627538113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73627542203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18035084 + ... + 18039165.

It is an arithmetic number, because the mean of its divisors is an integer number (9974530125).

Almost surely, 2^73627542209 is an apocalyptic number.

It is an amenable number.

73627542209 is a deficient number, since it is larger than the sum of its proper divisors (6168698791).

73627542209 is a wasteful number, since it uses less digits than its factorization.

73627542209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36074419.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 73627542209 in words is "seventy-three billion, six hundred twenty-seven million, five hundred forty-two thousand, two hundred nine".