82863964769856 has 112 divisors (see below), whose sum is σ = 220798950019200. Its totient is φ = 27425592524800.

The previous prime is 82863964769843. The next prime is 82863964769867. The reversal of 82863964769856 is 65896746936828.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75466381 + ... + 76556531.

It is an arithmetic number, because the mean of its divisors is an integer number (1971419196600).

Almost surely, 2^{82863964769856} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82863964769856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110399475009600).

82863964769856 is an abundant number, since it is smaller than the sum of its proper divisors (137934985249344).

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

82863964769856 is a wasteful number, since it uses less digits than its factorization.

82863964769856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092972 (or 1092962 counting only the distinct ones).

The product of its digits is 45148078080, while the sum is 87.

The spelling of 82863964769856 in words is "eighty-two trillion, eight hundred sixty-three billion, nine hundred sixty-four million, seven hundred sixty-nine thousand, eight hundred fifty-six".