68268761 has 16 divisors (see below), whose sum is σ = 78271488. Its totient is φ = 58938000.

The previous prime is 68268757. The next prime is 68268791. The reversal of 68268761 is 16786286.

It is not a de Polignac number, because 68268761 - 2² = 68268757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68268721) 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, 37310 + ... + 39096.

It is an arithmetic number, because the mean of its divisors is an integer number (4891968).

Almost surely, 2^68268761 is an apocalyptic number.

It is an amenable number.

68268761 is a deficient number, since it is larger than the sum of its proper divisors (10002727).

68268761 is a wasteful number, since it uses less digits than its factorization.

68268761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its digits is 193536, while the sum is 44.

The square root of 68268761 is about 8262.4912102828. The cubic root of 68268761 is about 408.7025433468.

The spelling of 68268761 in words is "sixty-eight million, two hundred sixty-eight thousand, seven hundred sixty-one".