61026742606717 has 2 divisors, whose sum is σ = 61026742606718. Its totient is φ = 61026742606716.

The previous prime is 61026742606681. The next prime is 61026742606723. The reversal of 61026742606717 is 71760624762016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52518588674841 + 8508153931876 = 7246971^2 + 2916874^2 .

It is a cyclic number.

It is not a de Polignac number, because 61026742606717 - 2³⁵ = 60992382868349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61026742606747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30513371303358 + 30513371303359.

It is an arithmetic number, because the mean of its divisors is an integer number (30513371303359).

Almost surely, 2^{61026742606717} is an apocalyptic number.

It is an amenable number.

61026742606717 is a deficient number, since it is larger than the sum of its proper divisors (1).

61026742606717 is an equidigital number, since it uses as much as digits as its factorization.

61026742606717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 61026742606717 in words is "sixty-one trillion, twenty-six billion, seven hundred forty-two million, six hundred six thousand, seven hundred seventeen".