68051331 has 24 divisors (see below), whose sum is σ = 104133120. Its totient is φ = 42704496.

The previous prime is 68051329. The next prime is 68051353. The reversal of 68051331 is 13315086.

It is not a de Polignac number, because 68051331 - 2¹ = 68051329 is a prime.

It is a super-2 number, since 2×68051331² = 9261967301743122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68051295 and 68051304.

It is not an unprimeable number, because it can be changed into a prime (68051381) 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, 27366 + ... + 29748.

It is an arithmetic number, because the mean of its divisors is an integer number (4338880).

Almost surely, 2^68051331 is an apocalyptic number.

68051331 is a deficient number, since it is larger than the sum of its proper divisors (36081789).

68051331 is a wasteful number, since it uses less digits than its factorization.

68051331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 68051331 is about 8249.3230631368. The cubic root of 68051331 is about 408.2681880061.

The spelling of 68051331 in words is "sixty-eight million, fifty-one thousand, three hundred thirty-one".