61613673373471 has 2 divisors, whose sum is σ = 61613673373472. Its totient is φ = 61613673373470.

The previous prime is 61613673373411. The next prime is 61613673373513. The reversal of 61613673373471 is 17437337631616.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61613673373471 - 2⁹ = 61613673372959 is a prime.

It is a super-3 number, since 3×61613673373471³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61613673373411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30806836686735 + 30806836686736.

It is an arithmetic number, because the mean of its divisors is an integer number (30806836686736).

Almost surely, 2^{61613673373471} is an apocalyptic number.

61613673373471 is a deficient number, since it is larger than the sum of its proper divisors (1).

61613673373471 is an equidigital number, since it uses as much as digits as its factorization.

61613673373471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24004512, while the sum is 58.

The spelling of 61613673373471 in words is "sixty-one trillion, six hundred thirteen billion, six hundred seventy-three million, three hundred seventy-three thousand, four hundred seventy-one".