868634063430 has 256 divisors, whose sum is σ = 2512319348736. Its totient is φ = 187917649920.

The previous prime is 868634063417. The next prime is 868634063471. The reversal of 868634063430 is 34360436868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 497213817 + ... + 497215563.

It is an arithmetic number, because the mean of its divisors is an integer number (9813747456).

Almost surely, 2^868634063430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868634063430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1256159674368).

868634063430 is an abundant number, since it is smaller than the sum of its proper divisors (1643685285306).

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

868634063430 is a wasteful number, since it uses less digits than its factorization.

868634063430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 5971968, while the sum is 51.

The spelling of 868634063430 in words is "eight hundred sixty-eight billion, six hundred thirty-four million, sixty-three thousand, four hundred thirty".