68456990400 has 84 divisors (see below), whose sum is σ = 224595991752. Its totient is φ = 18255196160.

The previous prime is 68456990389. The next prime is 68456990449. The reversal of 68456990400 is 409965486.

68456990400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7126137 + ... + 7135736.

Almost surely, 2^68456990400 is an apocalyptic number.

68456990400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68456990400 is an abundant number, since it is smaller than the sum of its proper divisors (156139001352).

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

68456990400 is a wasteful number, since it uses less digits than its factorization.

68456990400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14261898 (or 14261883 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 68456990400 in words is "sixty-eight billion, four hundred fifty-six million, nine hundred ninety thousand, four hundred".