68749722 has 40 divisors (see below), whose sum is σ = 154620576. Its totient is φ = 22831848.

The previous prime is 68749711. The next prime is 68749729. The reversal of 68749722 is 22794786.

It is not an unprimeable number, because it can be changed into a prime (68749729) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55603 + ... + 56825.

Almost surely, 2^68749722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68749722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77310288).

68749722 is an abundant number, since it is smaller than the sum of its proper divisors (85870854).

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

68749722 is a wasteful number, since it uses less digits than its factorization.

68749722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1575 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 68749722 is about 8291.5452118408. The cubic root of 68749722 is about 409.6600831267.

The spelling of 68749722 in words is "sixty-eight million, seven hundred forty-nine thousand, seven hundred twenty-two".