68000310257 has 4 divisors (see below), whose sum is σ = 74182156656. Its totient is φ = 61818463860.

The previous prime is 68000310253. The next prime is 68000310269. The reversal of 68000310257 is 75201300086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68000310257 - 2² = 68000310253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68000310253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3090923183 + ... + 3090923204.

It is an arithmetic number, because the mean of its divisors is an integer number (18545539164).

Almost surely, 2^68000310257 is an apocalyptic number.

It is an amenable number.

68000310257 is a deficient number, since it is larger than the sum of its proper divisors (6181846399).

68000310257 is a wasteful number, since it uses less digits than its factorization.

68000310257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181846398.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 68000310257 in words is "sixty-eight billion, three hundred ten thousand, two hundred fifty-seven".