68979167681532 has 24 divisors (see below), whose sum is σ = 162428009528400. Its totient is φ = 22782110426496.

The previous prime is 68979167681531. The next prime is 68979167681537. The reversal of 68979167681532 is 23518676197986.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68979167681531) 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, 26368182057 + ... + 26368184672.

It is an arithmetic number, because the mean of its divisors is an integer number (6767833730350).

Almost surely, 2^{68979167681532} is an apocalyptic number.

It is an amenable number.

68979167681532 is an abundant number, since it is smaller than the sum of its proper divisors (93448841846868).

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

68979167681532 is a wasteful number, since it uses less digits than its factorization.

68979167681532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52736366845 (or 52736366843 counting only the distinct ones).

The product of its digits is 1646023680, while the sum is 78.

The spelling of 68979167681532 in words is "sixty-eight trillion, nine hundred seventy-nine billion, one hundred sixty-seven million, six hundred eighty-one thousand, five hundred thirty-two".