68153750 has 40 divisors (see below), whose sum is σ = 146015760. Its totient is φ = 23364000.

The previous prime is 68153737. The next prime is 68153759. The reversal of 68153750 is 5735186.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 68153750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68153759) 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, 4856 + ... + 12644.

It is an arithmetic number, because the mean of its divisors is an integer number (3650394).

Almost surely, 2^68153750 is an apocalyptic number.

68153750 is an abundant number, since it is smaller than the sum of its proper divisors (77862010).

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

68153750 is an equidigital number, since it uses as much as digits as its factorization.

68153750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7818 (or 7803 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 68153750 is about 8255.5284506808. The cubic root of 68153750 is about 408.4729033741.

The spelling of 68153750 in words is "sixty-eight million, one hundred fifty-three thousand, seven hundred fifty".