61417648799 has 16 divisors (see below), whose sum is σ = 66584616000. Its totient is φ = 56314849536.

The previous prime is 61417648777. The next prime is 61417648813. The reversal of 61417648799 is 99784671416.

It is a cyclic number.

It is not a de Polignac number, because 61417648799 - 2³² = 57122681503 is a prime.

It is a super-2 number, since 2×61417648799² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61417648769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566467 + ... + 1605195.

It is an arithmetic number, because the mean of its divisors is an integer number (4161538500).

Almost surely, 2^61417648799 is an apocalyptic number.

61417648799 is a deficient number, since it is larger than the sum of its proper divisors (5166967201).

61417648799 is a wasteful number, since it uses less digits than its factorization.

61417648799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39554.

The product of its digits is 18289152, while the sum is 62.

The spelling of 61417648799 in words is "sixty-one billion, four hundred seventeen million, six hundred forty-eight thousand, seven hundred ninety-nine".