1029656434856 has 32 divisors (see below), whose sum is σ = 2207377621440. Its totient is φ = 441087134208.

The previous prime is 1029656434819. The next prime is 1029656434871. The reversal of 1029656434856 is 6584346569201.

It is a junction number, because it is equal to n+sod(n) for n = 1029656434795 and 1029656434804.

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, 3917306 + ... + 4171881.

It is an arithmetic number, because the mean of its divisors is an integer number (68980550670).

Almost surely, 2^{1029656434856} is an apocalyptic number.

It is an amenable number.

1029656434856 is an abundant number, since it is smaller than the sum of its proper divisors (1177721186584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1029656434856 is a wasteful number, since it uses less digits than its factorization.

1029656434856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091473 (or 8091469 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 59.

The spelling of 1029656434856 in words is "one trillion, twenty-nine billion, six hundred fifty-six million, four hundred thirty-four thousand, eight hundred fifty-six".