68466761 has 24 divisors (see below), whose sum is σ = 79388232. Its totient is φ = 58924800.

The previous prime is 68466751. The next prime is 68466763. The reversal of 68466761 is 16766486.

It can be written as a sum of positive squares in 4 ways, for example, as 8497225 + 59969536 = 2915^2 + 7744^2 .

It is not a de Polignac number, because 68466761 - 2¹⁰ = 68465737 is a prime.

It is a super-2 number, since 2×68466761² = 9375394723662242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68466763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183371 + ... + 183743.

It is an arithmetic number, because the mean of its divisors is an integer number (3307843).

Almost surely, 2^68466761 is an apocalyptic number.

It is an amenable number.

68466761 is a deficient number, since it is larger than the sum of its proper divisors (10921471).

68466761 is a wasteful number, since it uses less digits than its factorization.

68466761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 462 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 68466761 is about 8274.4643935423. The cubic root of 68466761 is about 409.0972821918.

The spelling of 68466761 in words is "sixty-eight million, four hundred sixty-six thousand, seven hundred sixty-one".