61442276217 has 8 divisors (see below), whose sum is σ = 93626325696. Its totient is φ = 35109872112.

The previous prime is 61442276213. The next prime is 61442276227. The reversal of 61442276217 is 71267224416.

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

It is not a de Polignac number, because 61442276217 - 2² = 61442276213 is a prime.

It is a super-2 number, since 2×61442276217² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61442276213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462911318 + ... + 1462911359.

It is an arithmetic number, because the mean of its divisors is an integer number (11703290712).

Almost surely, 2^61442276217 is an apocalyptic number.

It is an amenable number.

61442276217 is a deficient number, since it is larger than the sum of its proper divisors (32184049479).

61442276217 is a wasteful number, since it uses less digits than its factorization.

61442276217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925822687.

The product of its digits is 225792, while the sum is 42.

The spelling of 61442276217 in words is "sixty-one billion, four hundred forty-two million, two hundred seventy-six thousand, two hundred seventeen".