68751072 has 96 divisors (see below), whose sum is σ = 215984160. Its totient is φ = 21150720.

The previous prime is 68751047. The next prime is 68751073. The reversal of 68751072 is 27015786.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×68751072² = 9453419802298368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68751073) 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, 8172 + ... + 14292.

It is an arithmetic number, because the mean of its divisors is an integer number (2249835).

Almost surely, 2^68751072 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 68751072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107992080).

68751072 is an abundant number, since it is smaller than the sum of its proper divisors (147233088).

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

68751072 is a wasteful number, since it uses less digits than its factorization.

68751072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153 (or 6139 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 68751072 is about 8291.6266196688. The cubic root of 68751072 is about 409.6627645314.

The spelling of 68751072 in words is "sixty-eight million, seven hundred fifty-one thousand, seventy-two".