917427473077 has 2 divisors, whose sum is σ = 917427473078. Its totient is φ = 917427473076.

The previous prime is 917427473051. The next prime is 917427473113. The reversal of 917427473077 is 770374724719.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755985036676 + 161442436401 = 869474^2 + 401799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-917427473077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (917427473377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458713736538 + 458713736539.

It is an arithmetic number, because the mean of its divisors is an integer number (458713736539).

Almost surely, 2^917427473077 is an apocalyptic number.

It is an amenable number.

917427473077 is a deficient number, since it is larger than the sum of its proper divisors (1).

917427473077 is an equidigital number, since it uses as much as digits as its factorization.

917427473077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14521248, while the sum is 58.

The spelling of 917427473077 in words is "nine hundred seventeen billion, four hundred twenty-seven million, four hundred seventy-three thousand, seventy-seven".