3561542465 has 16 divisors (see below), whose sum is σ = 4603872000. Its totient is φ = 2629340352.

The previous prime is 3561542443. The next prime is 3561542471. The reversal of 3561542465 is 5642451653.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3561542465 - 2¹⁰ = 3561541441 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 398516 + ... + 407354.

It is an arithmetic number, because the mean of its divisors is an integer number (287742000).

Almost surely, 2^3561542465 is an apocalyptic number.

It is an amenable number.

3561542465 is a deficient number, since it is larger than the sum of its proper divisors (1042329535).

3561542465 is a wasteful number, since it uses less digits than its factorization.

3561542465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15056.

The product of its digits is 432000, while the sum is 41.

The square root of 3561542465 is about 59678.6600469548. The cubic root of 3561542465 is about 1527.1418389294.

The spelling of 3561542465 in words is "three billion, five hundred sixty-one million, five hundred forty-two thousand, four hundred sixty-five".