634414414477 has 2 divisors, whose sum is σ = 634414414478. Its totient is φ = 634414414476.

The previous prime is 634414414471. The next prime is 634414414481. The reversal of 634414414477 is 774414414436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626925069796 + 7489344681 = 791786^2 + 86541^2 .

It is a cyclic number.

It is not a de Polignac number, because 634414414477 - 2²⁷ = 634280196749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634414414477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634414414471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317207207238 + 317207207239.

It is an arithmetic number, because the mean of its divisors is an integer number (317207207239).

Almost surely, 2^634414414477 is an apocalyptic number.

It is an amenable number.

634414414477 is a deficient number, since it is larger than the sum of its proper divisors (1).

634414414477 is an equidigital number, since it uses as much as digits as its factorization.

634414414477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 49.

The spelling of 634414414477 in words is "six hundred thirty-four billion, four hundred fourteen million, four hundred fourteen thousand, four hundred seventy-seven".