68685237510 has 16 divisors (see below), whose sum is σ = 164844570096. Its totient is φ = 18316063328.

The previous prime is 68685237499. The next prime is 68685237539. The reversal of 68685237510 is 1573258686.

It is a happy number.

It is a super-2 number, since 2×68685237510² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144753929 + ... + 1144753988.

It is an arithmetic number, because the mean of its divisors is an integer number (10302785631).

Almost surely, 2^68685237510 is an apocalyptic number.

68685237510 is an abundant number, since it is smaller than the sum of its proper divisors (96159332586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68685237510 is a wasteful number, since it uses less digits than its factorization.

68685237510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289507927.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 68685237510 in words is "sixty-eight billion, six hundred eighty-five million, two hundred thirty-seven thousand, five hundred ten".