3627561872545 has 32 divisors (see below), whose sum is σ = 4892148576000. Its totient is φ = 2562135400704.

The previous prime is 3627561872537. The next prime is 3627561872587. The reversal of 3627561872545 is 5452781657263.

It is a cyclic number.

It is not a de Polignac number, because 3627561872545 - 2³ = 3627561872537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19505406 + ... + 19690504.

It is an arithmetic number, because the mean of its divisors is an integer number (152879643000).

Almost surely, 2^{3627561872545} is an apocalyptic number.

It is an amenable number.

3627561872545 is a deficient number, since it is larger than the sum of its proper divisors (1264586703455).

3627561872545 is a wasteful number, since it uses less digits than its factorization.

3627561872545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198249.

The product of its digits is 84672000, while the sum is 61.

The spelling of 3627561872545 in words is "three trillion, six hundred twenty-seven billion, five hundred sixty-one million, eight hundred seventy-two thousand, five hundred forty-five".