68144470 has 16 divisors (see below), whose sum is σ = 122818320. Its totient is φ = 27222624.

The previous prime is 68144441. The next prime is 68144513. The reversal of 68144470 is 7444186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624 + ... + 12556.

It is an arithmetic number, because the mean of its divisors is an integer number (7676145).

Almost surely, 2^68144470 is an apocalyptic number.

68144470 is a deficient number, since it is larger than the sum of its proper divisors (54673850).

68144470 is a wasteful number, since it uses less digits than its factorization.

68144470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 68144470 is about 8254.9663839412. The cubic root of 68144470 is about 408.4543629387.

The spelling of 68144470 in words is "sixty-eight million, one hundred forty-four thousand, four hundred seventy".