68751361 has 12 divisors (see below), whose sum is σ = 80120340. Its totient is φ = 58823520.

The previous prime is 68751341. The next prime is 68751377. The reversal of 68751361 is 16315786.

It can be written as a sum of positive squares in 2 ways, for example, as 15752961 + 52998400 = 3969^2 + 7280^2 .

It is not a de Polignac number, because 68751361 - 2⁷ = 68751233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68751361.

It is not an unprimeable number, because it can be changed into a prime (68751341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39375 + ... + 41083.

It is an arithmetic number, because the mean of its divisors is an integer number (6676695).

Almost surely, 2^68751361 is an apocalyptic number.

It is an amenable number.

68751361 is a deficient number, since it is larger than the sum of its proper divisors (11368979).

68751361 is a wasteful number, since it uses less digits than its factorization.

68751361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544 (or 2537 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 68751361 is about 8291.6440468703. The cubic root of 68751361 is about 409.6633385461.

The spelling of 68751361 in words is "sixty-eight million, seven hundred fifty-one thousand, three hundred sixty-one".