961039253145679 has 2 divisors, whose sum is σ = 961039253145680. Its totient is φ = 961039253145678.

The previous prime is 961039253145613. The next prime is 961039253145767. The reversal of 961039253145679 is 976541352930169.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 961039253145679 - 2⁴⁹ = 398089299724367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961039253245679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480519626572839 + 480519626572840.

It is an arithmetic number, because the mean of its divisors is an integer number (480519626572840).

Almost surely, 2^{961039253145679} is an apocalyptic number.

961039253145679 is a deficient number, since it is larger than the sum of its proper divisors (1).

961039253145679 is an equidigital number, since it uses as much as digits as its factorization.

961039253145679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 330674400, while the sum is 70.

The spelling of 961039253145679 in words is "nine hundred sixty-one trillion, thirty-nine billion, two hundred fifty-three million, one hundred forty-five thousand, six hundred seventy-nine".