68750989772 has 6 divisors (see below), whose sum is σ = 120314232108. Its totient is φ = 34375494884.

The previous prime is 68750989771. The next prime is 68750989781. The reversal of 68750989772 is 27798905786.

It is a super-2 number, since 2×68750989772² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68750989771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8593873718 + ... + 8593873725.

It is an arithmetic number, because the mean of its divisors is an integer number (20052372018).

Almost surely, 2^68750989772 is an apocalyptic number.

It is an amenable number.

68750989772 is a deficient number, since it is larger than the sum of its proper divisors (51563242336).

68750989772 is a wasteful number, since it uses less digits than its factorization.

68750989772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17187747447 (or 17187747445 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 68.

The spelling of 68750989772 in words is "sixty-eight billion, seven hundred fifty million, nine hundred eighty-nine thousand, seven hundred seventy-two".