68521754 has 16 divisors (see below), whose sum is σ = 117744000. Its totient is φ = 29296944.

The previous prime is 68521721. The next prime is 68521759. The reversal of 68521754 is 45712586.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68521759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572 + ... + 11720.

It is an arithmetic number, because the mean of its divisors is an integer number (7359000).

Almost surely, 2^68521754 is an apocalyptic number.

68521754 is a deficient number, since it is larger than the sum of its proper divisors (49222246).

68521754 is a wasteful number, since it uses less digits than its factorization.

68521754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11597.

The product of its digits is 67200, while the sum is 38.

The square root of 68521754 is about 8277.7867815014. The cubic root of 68521754 is about 409.2067828498.

The spelling of 68521754 in words is "sixty-eight million, five hundred twenty-one thousand, seven hundred fifty-four".