68299511731 has 8 divisors (see below), whose sum is σ = 74657880000. Its totient is φ = 61966030440.

The previous prime is 68299511719. The next prime is 68299511771. The reversal of 68299511731 is 13711599286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68299511731 - 2¹¹ = 68299509683 is a prime.

It is a super-2 number, since 2×68299511731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68299511771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6216001 + ... + 6226978.

It is an arithmetic number, because the mean of its divisors is an integer number (9332235000).

Almost surely, 2^68299511731 is an apocalyptic number.

68299511731 is a deficient number, since it is larger than the sum of its proper divisors (6358368269).

68299511731 is a wasteful number, since it uses less digits than its factorization.

68299511731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443489.

The product of its digits is 816480, while the sum is 52.

The spelling of 68299511731 in words is "sixty-eight billion, two hundred ninety-nine million, five hundred eleven thousand, seven hundred thirty-one".