77070400417 has 2 divisors, whose sum is σ = 77070400418. Its totient is φ = 77070400416.

The previous prime is 77070400411. The next prime is 77070400487. The reversal of 77070400417 is 71400407077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42646793121 + 34423607296 = 206511^2 + 185536^2 .

It is a cyclic number.

It is not a de Polignac number, because 77070400417 - 2³ = 77070400409 is a prime.

It is not a weakly prime, because it can be changed into another prime (77070400411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38535200208 + 38535200209.

It is an arithmetic number, because the mean of its divisors is an integer number (38535200209).

Almost surely, 2^77070400417 is an apocalyptic number.

It is an amenable number.

77070400417 is a deficient number, since it is larger than the sum of its proper divisors (1).

77070400417 is an equidigital number, since it uses as much as digits as its factorization.

77070400417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38416, while the sum is 37.

The spelling of 77070400417 in words is "seventy-seven billion, seventy million, four hundred thousand, four hundred seventeen".