72604606353571 has 4 divisors (see below), whose sum is σ = 72679688677552. Its totient is φ = 72529524029592.

The previous prime is 72604606353553. The next prime is 72604606353599. The reversal of 72604606353571 is 17535360640627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72604606353571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72604606353271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37541160540 + ... + 37541162473.

It is an arithmetic number, because the mean of its divisors is an integer number (18169922169388).

Almost surely, 2^{72604606353571} is an apocalyptic number.

72604606353571 is a deficient number, since it is larger than the sum of its proper divisors (75082323981).

72604606353571 is an equidigital number, since it uses as much as digits as its factorization.

72604606353571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75082323980.

The product of its (nonzero) digits is 19051200, while the sum is 55.

The spelling of 72604606353571 in words is "seventy-two trillion, six hundred four billion, six hundred six million, three hundred fifty-three thousand, five hundred seventy-one".