863075878038 has 48 divisors (see below), whose sum is σ = 2083401755136. Its totient is φ = 255973500720.

The previous prime is 863075878019. The next prime is 863075878039. The reversal of 863075878038 is 830878570368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863075878039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46362706 + ... + 46381317.

It is an arithmetic number, because the mean of its divisors is an integer number (43404203232).

Almost surely, 2^863075878038 is an apocalyptic number.

863075878038 is an abundant number, since it is smaller than the sum of its proper divisors (1220325877098).

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

863075878038 is a wasteful number, since it uses less digits than its factorization.

863075878038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92744089 (or 92744086 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 63.

The spelling of 863075878038 in words is "eight hundred sixty-three billion, seventy-five million, eight hundred seventy-eight thousand, thirty-eight".