68124644892 has 48 divisors (see below), whose sum is σ = 177276103200. Its totient is φ = 22623788160.

The previous prime is 68124644869. The next prime is 68124644893. The reversal of 68124644892 is 29844642186.

It is a happy number.

68124644892 is a `hidden beast` number, since 6 + 81 + 24 + 64 + 489 + 2 = 666.

It is a super-2 number, since 2×68124644892² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68124644893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143409 + ... + 1201512.

It is an arithmetic number, because the mean of its divisors is an integer number (3693252150).

Almost surely, 2^68124644892 is an apocalyptic number.

It is an amenable number.

68124644892 is an abundant number, since it is smaller than the sum of its proper divisors (109151458308).

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

68124644892 is a wasteful number, since it uses less digits than its factorization.

68124644892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345203 (or 2345195 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The spelling of 68124644892 in words is "sixty-eight billion, one hundred twenty-four million, six hundred forty-four thousand, eight hundred ninety-two".