68733078381 has 48 divisors (see below), whose sum is σ = 110807094528. Its totient is φ = 40697856000.

The previous prime is 68733078377. The next prime is 68733078391. The reversal of 68733078381 is 18387033786.

It is not a de Polignac number, because 68733078381 - 2² = 68733078377 is a prime.

It is a super-2 number, since 2×68733078381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68733078361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2671981 + ... + 2697581.

It is an arithmetic number, because the mean of its divisors is an integer number (2308481136).

Almost surely, 2^68733078381 is an apocalyptic number.

It is an amenable number.

68733078381 is a deficient number, since it is larger than the sum of its proper divisors (42074016147).

68733078381 is a wasteful number, since it uses less digits than its factorization.

68733078381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242 (or 26239 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 68733078381 in words is "sixty-eight billion, seven hundred thirty-three million, seventy-eight thousand, three hundred eighty-one".