61061000549 has 8 divisors (see below), whose sum is σ = 65328422880. Its totient is φ = 56898946800.

The previous prime is 61061000543. The next prime is 61061000617. The reversal of 61061000549 is 94500016016.

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

It is a cyclic number.

It is not a de Polignac number, because 61061000549 - 2²⁴ = 61044223333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061000543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26340947 + ... + 26343264.

It is an arithmetic number, because the mean of its divisors is an integer number (8166052860).

Almost surely, 2^61061000549 is an apocalyptic number.

It is an amenable number.

61061000549 is a deficient number, since it is larger than the sum of its proper divisors (4267422331).

61061000549 is a wasteful number, since it uses less digits than its factorization.

61061000549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52684291.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 61061000549 in words is "sixty-one billion, sixty-one million, five hundred forty-nine", and thus it is an aban number.