61023135717 has 6 divisors (see below), whose sum is σ = 88144529382. Its totient is φ = 40682090472.

The previous prime is 61023135709. The next prime is 61023135721. The reversal of 61023135717 is 71753132016.

61023135717 is a `hidden beast` number, since 61 + 0 + 23 + 1 + 3 + 571 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48274241796 + 12748893921 = 219714^2 + 112911^2 .

It is not a de Polignac number, because 61023135717 - 2³ = 61023135709 is a prime.

It is a super-2 number, since 2×61023135717² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61023135317) 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 5 ways as a sum of consecutive naturals, for example, 3390174198 + ... + 3390174215.

It is an arithmetic number, because the mean of its divisors is an integer number (14690754897).

Almost surely, 2^61023135717 is an apocalyptic number.

It is an amenable number.

61023135717 is a deficient number, since it is larger than the sum of its proper divisors (27121393665).

61023135717 is a wasteful number, since it uses less digits than its factorization.

61023135717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780348419 (or 6780348416 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The spelling of 61023135717 in words is "sixty-one billion, twenty-three million, one hundred thirty-five thousand, seven hundred seventeen".