68734697472 has 600 divisors, whose sum is σ = 241060265600. Its totient is φ = 19508428800.

The previous prime is 68734697429. The next prime is 68734697477. The reversal of 68734697472 is 27479643786.

It is a happy number.

68734697472 is a `hidden beast` number, since 6 + 8 + 73 + 4 + 6 + 97 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68734697477) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 455196597 + ... + 455196747.

Almost surely, 2^68734697472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68734697472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120530132800).

68734697472 is an abundant number, since it is smaller than the sum of its proper divisors (172325568128).

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

68734697472 is an frugal number, since it uses more digits than its factorization.

68734697472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 163 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 63.

The spelling of 68734697472 in words is "sixty-eight billion, seven hundred thirty-four million, six hundred ninety-seven thousand, four hundred seventy-two".