68311633 has 16 divisors (see below), whose sum is σ = 78414336. Its totient is φ = 59019840.

The previous prime is 68311613. The next prime is 68311637. The reversal of 68311633 is 33611386.

It is not a de Polignac number, because 68311633 - 2⁹ = 68311121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68311595 and 68311604.

It is not an unprimeable number, because it can be changed into a prime (68311637) 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, 11623 + ... + 16483.

It is an arithmetic number, because the mean of its divisors is an integer number (4900896).

Almost surely, 2^68311633 is an apocalyptic number.

It is an amenable number.

68311633 is a deficient number, since it is larger than the sum of its proper divisors (10102703).

68311633 is a wasteful number, since it uses less digits than its factorization.

68311633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944.

The product of its digits is 7776, while the sum is 31.

The square root of 68311633 is about 8265.0851780245. The cubic root of 68311633 is about 408.7880789496.

It can be divided in two parts, 6831 and 1633, that added together give a square (8464 = 92²).

The spelling of 68311633 in words is "sixty-eight million, three hundred eleven thousand, six hundred thirty-three".