61450140885617 has 8 divisors (see below), whose sum is σ = 67036588848000. Its totient is φ = 55863704842960.

The previous prime is 61450140885613. The next prime is 61450140885689. The reversal of 61450140885617 is 71658804105416.

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 61450140885617 - 2² = 61450140885613 is a prime.

It is a super-2 number, since 2×61450140885617² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61450140885611) 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, 10418759 + ... + 15213507.

It is an arithmetic number, because the mean of its divisors is an integer number (8379573606000).

Almost surely, 2^{61450140885617} is an apocalyptic number.

It is an amenable number.

61450140885617 is a deficient number, since it is larger than the sum of its proper divisors (5586447962383).

61450140885617 is a wasteful number, since it uses less digits than its factorization.

61450140885617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959863.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 61450140885617 in words is "sixty-one trillion, four hundred fifty billion, one hundred forty million, eight hundred eighty-five thousand, six hundred seventeen".