434809678802 has 16 divisors (see below), whose sum is σ = 654779683800. Its totient is φ = 216550131840.

The previous prime is 434809678799. The next prime is 434809678819. The reversal of 434809678802 is 208876908434.

It is a Cunningham number, because it is equal to 659401²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 109555042081 + 325254636721 = 330991^2 + 570311^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492102 + ... + 2660862.

Almost surely, 2^434809678802 is an apocalyptic number.

434809678802 is a deficient number, since it is larger than the sum of its proper divisors (219970004998).

434809678802 is a wasteful number, since it uses less digits than its factorization.

434809678802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173821.

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 434809678802 in words is "four hundred thirty-four billion, eight hundred nine million, six hundred seventy-eight thousand, eight hundred two".