68281633038 has 16 divisors (see below), whose sum is σ = 136576414080. Its totient is φ = 22758353016.

The previous prime is 68281633031. The next prime is 68281633039. The reversal of 68281633038 is 83033618286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68281633031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479668 + ... + 605511.

It is an arithmetic number, because the mean of its divisors is an integer number (8536025880).

Almost surely, 2^68281633038 is an apocalyptic number.

68281633038 is an abundant number, since it is smaller than the sum of its proper divisors (68294781042).

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

68281633038 is a wasteful number, since it uses less digits than its factorization.

68281633038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095671.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 68281633038 in words is "sixty-eight billion, two hundred eighty-one million, six hundred thirty-three thousand, thirty-eight".