68691269660 has 48 divisors (see below), whose sum is σ = 155390731776. Its totient is φ = 25355945472.

The previous prime is 68691269629. The next prime is 68691269687. The reversal of 68691269660 is 6696219686.

It is a self number, because there is not a number n which added to its sum of digits gives 68691269660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962117 + ... + 1031043.

It is an arithmetic number, because the mean of its divisors is an integer number (3237306912).

Almost surely, 2^68691269660 is an apocalyptic number.

It is an amenable number.

68691269660 is an abundant number, since it is smaller than the sum of its proper divisors (86699462116).

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

68691269660 is a wasteful number, since it uses less digits than its factorization.

68691269660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72782 (or 72780 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 59.

It can be divided in two parts, 6869126 and 9660, that added together give a palindrome (6878786).

The spelling of 68691269660 in words is "sixty-eight billion, six hundred ninety-one million, two hundred sixty-nine thousand, six hundred sixty".