3621520137272 has 16 divisors (see below), whose sum is σ = 6790602054600. Its totient is φ = 1810692922720.

The previous prime is 3621520137271. The next prime is 3621520137283. The reversal of 3621520137272 is 2727310251263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621520137271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8163647 + ... + 8595822.

Almost surely, 2^{3621520137272} is an apocalyptic number.

It is an amenable number.

3621520137272 is a deficient number, since it is larger than the sum of its proper divisors (3169081917328).

3621520137272 is a wasteful number, since it uses less digits than its factorization.

3621520137272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16786486 (or 16786482 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 3621520137272 in words is "three trillion, six hundred twenty-one billion, five hundred twenty million, one hundred thirty-seven thousand, two hundred seventy-two".