68741481554 has 32 divisors (see below), whose sum is σ = 111653505216. Its totient is φ = 31622722560.

The previous prime is 68741481521. The next prime is 68741481559. The reversal of 68741481554 is 45518414786.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68741481496 and 68741481505.

It is not an unprimeable number, because it can be changed into a prime (68741481559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183242 + ... + 413594.

It is an arithmetic number, because the mean of its divisors is an integer number (3489172038).

Almost surely, 2^68741481554 is an apocalyptic number.

68741481554 is a deficient number, since it is larger than the sum of its proper divisors (42912023662).

68741481554 is a wasteful number, since it uses less digits than its factorization.

68741481554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230570.

The product of its digits is 4300800, while the sum is 53.

The spelling of 68741481554 in words is "sixty-eight billion, seven hundred forty-one million, four hundred eighty-one thousand, five hundred fifty-four".