61023239017 has 4 divisors (see below), whose sum is σ = 65717334340. Its totient is φ = 56329143696.

The previous prime is 61023238979. The next prime is 61023239023. The reversal of 61023239017 is 71093232016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14014061161 + 47009177856 = 118381^2 + 216816^2 .

It is a cyclic number.

It is not a de Polignac number, because 61023239017 - 2⁷ = 61023238889 is a prime.

It is a super-2 number, since 2×61023239017² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61023239087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347047642 + ... + 2347047667.

It is an arithmetic number, because the mean of its divisors is an integer number (16429333585).

Almost surely, 2^61023239017 is an apocalyptic number.

It is an amenable number.

61023239017 is a deficient number, since it is larger than the sum of its proper divisors (4694095323).

61023239017 is a wasteful number, since it uses less digits than its factorization.

61023239017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694095322.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 61023239017 in words is "sixty-one billion, twenty-three million, two hundred thirty-nine thousand, seventeen".