68081533071 has 24 divisors (see below), whose sum is σ = 97020998784. Its totient is φ = 42455664000.

The previous prime is 68081533067. The next prime is 68081533087. The reversal of 68081533071 is 17033518086.

It is not a de Polignac number, because 68081533071 - 2² = 68081533067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68081533061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99555 + ... + 382196.

It is an arithmetic number, because the mean of its divisors is an integer number (4042541616).

Almost surely, 2^68081533071 is an apocalyptic number.

68081533071 is a deficient number, since it is larger than the sum of its proper divisors (28939465713).

68081533071 is a wasteful number, since it uses less digits than its factorization.

68081533071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481951 (or 481934 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 68081533071 in words is "sixty-eight billion, eighty-one million, five hundred thirty-three thousand, seventy-one".