74170709663 has 2 divisors, whose sum is σ = 74170709664. Its totient is φ = 74170709662.

The previous prime is 74170709573. The next prime is 74170709677. The reversal of 74170709663 is 36690707147.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74170709663 - 2⁸ = 74170709407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74170709363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37085354831 + 37085354832.

It is an arithmetic number, because the mean of its divisors is an integer number (37085354832).

Almost surely, 2^74170709663 is an apocalyptic number.

74170709663 is a deficient number, since it is larger than the sum of its proper divisors (1).

74170709663 is an equidigital number, since it uses as much as digits as its factorization.

74170709663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 50.

The spelling of 74170709663 in words is "seventy-four billion, one hundred seventy million, seven hundred nine thousand, six hundred sixty-three".