68719554 has 12 divisors (see below), whose sum is σ = 148892406. Its totient is φ = 22906512.

The previous prime is 68719549. The next prime is 68719583. The reversal of 68719554 is 45591786.

68719554 is a `hidden beast` number, since 6 + 87 + 19 + 554 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53626329 + 15093225 = 7323^2 + 3885^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1908859 + ... + 1908894.

Almost surely, 2^68719554 is an apocalyptic number.

68719554 is an abundant number, since it is smaller than the sum of its proper divisors (80172852).

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

68719554 is a wasteful number, since it uses less digits than its factorization.

68719554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817761 (or 3817758 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 68719554 is about 8289.7258096996. The cubic root of 68719554 is about 409.6001535097.

The spelling of 68719554 in words is "sixty-eight million, seven hundred nineteen thousand, five hundred fifty-four".