68446729524 has 24 divisors (see below), whose sum is σ = 161958460608. Its totient is φ = 22494230080.

The previous prime is 68446729499. The next prime is 68446729577. The reversal of 68446729524 is 42592764486.

It is a super-2 number, since 2×68446729524² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40167417 + ... + 40169120.

It is an arithmetic number, because the mean of its divisors is an integer number (6748269192).

Almost surely, 2^68446729524 is an apocalyptic number.

It is an amenable number.

68446729524 is an abundant number, since it is smaller than the sum of its proper divisors (93511731084).

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

68446729524 is a wasteful number, since it uses less digits than its factorization.

68446729524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80336615 (or 80336613 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 57.

The spelling of 68446729524 in words is "sixty-eight billion, four hundred forty-six million, seven hundred twenty-nine thousand, five hundred twenty-four".