61617017067 has 8 divisors (see below), whose sum is σ = 82461436560. Its totient is φ = 40925304480.

The previous prime is 61617017051. The next prime is 61617017069. The reversal of 61617017067 is 76071071616.

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

It is not a de Polignac number, because 61617017067 - 2⁴ = 61617017051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61617017069) 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 7 ways as a sum of consecutive naturals, for example, 38175784 + ... + 38177397.

It is an arithmetic number, because the mean of its divisors is an integer number (10307679570).

Almost surely, 2^61617017067 is an apocalyptic number.

61617017067 is a deficient number, since it is larger than the sum of its proper divisors (20844419493).

61617017067 is a wasteful number, since it uses less digits than its factorization.

61617017067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76353453.

The product of its (nonzero) digits is 74088, while the sum is 42.

The spelling of 61617017067 in words is "sixty-one billion, six hundred seventeen million, seventeen thousand, sixty-seven".