68649526 has 16 divisors (see below), whose sum is σ = 117220608. Its totient is φ = 29847400.

The previous prime is 68649517. The next prime is 68649547. The reversal of 68649526 is 62594686.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67330 + ... + 68341.

It is an arithmetic number, because the mean of its divisors is an integer number (7326288).

Almost surely, 2^68649526 is an apocalyptic number.

68649526 is a deficient number, since it is larger than the sum of its proper divisors (48571082).

68649526 is a wasteful number, since it uses less digits than its factorization.

68649526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135707.

The product of its digits is 622080, while the sum is 46.

The square root of 68649526 is about 8285.5009504556. The cubic root of 68649526 is about 409.4609731910.

The spelling of 68649526 in words is "sixty-eight million, six hundred forty-nine thousand, five hundred twenty-six".