68898209632 has 24 divisors (see below), whose sum is σ = 155020972176. Its totient is φ = 29527804032.

The previous prime is 68898209623. The next prime is 68898209669. The reversal of 68898209632 is 23690289886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153790423 + ... + 153790870.

It is an arithmetic number, because the mean of its divisors is an integer number (6459207174).

Almost surely, 2^68898209632 is an apocalyptic number.

It is an amenable number.

68898209632 is an abundant number, since it is smaller than the sum of its proper divisors (86122762544).

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

68898209632 is a wasteful number, since it uses less digits than its factorization.

68898209632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307581310 (or 307581302 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 68898209632 in words is "sixty-eight billion, eight hundred ninety-eight million, two hundred nine thousand, six hundred thirty-two".