834779776436 has 6 divisors (see below), whose sum is σ = 1460864608770. Its totient is φ = 417389888216.

The previous prime is 834779776417. The next prime is 834779776459. The reversal of 834779776436 is 634677977438.

It can be written as a sum of positive squares in only one way, i.e., 598447676836 + 236332099600 = 773594^2 + 486140^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 834779776436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104347472051 + ... + 104347472058.

It is an arithmetic number, because the mean of its divisors is an integer number (243477434795).

Almost surely, 2^834779776436 is an apocalyptic number.

It is an amenable number.

834779776436 is a deficient number, since it is larger than the sum of its proper divisors (626084832334).

834779776436 is a wasteful number, since it uses less digits than its factorization.

834779776436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208694944113 (or 208694944111 counting only the distinct ones).

The product of its digits is 896168448, while the sum is 71.

The spelling of 834779776436 in words is "eight hundred thirty-four billion, seven hundred seventy-nine million, seven hundred seventy-six thousand, four hundred thirty-six".