384777777413 has 2 divisors, whose sum is σ = 384777777414. Its totient is φ = 384777777412.

The previous prime is 384777777389. The next prime is 384777777421. The reversal of 384777777413 is 314777777483.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384775811809 + 1965604 = 620303^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 384777777413 - 2¹⁰ = 384777776389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384777777413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384777777493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192388888706 + 192388888707.

It is an arithmetic number, because the mean of its divisors is an integer number (192388888707).

Almost surely, 2^384777777413 is an apocalyptic number.

It is an amenable number.

384777777413 is a deficient number, since it is larger than the sum of its proper divisors (1).

384777777413 is an equidigital number, since it uses as much as digits as its factorization.

384777777413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135531648, while the sum is 65.

The spelling of 384777777413 in words is "three hundred eighty-four billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, four hundred thirteen".