68201913 has 32 divisors (see below), whose sum is σ = 101871616. Its totient is φ = 40315968.

The previous prime is 68201911. The next prime is 68201927. The reversal of 68201913 is 31910286.

It is not a de Polignac number, because 68201913 - 2¹ = 68201911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68201911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112056 + ... + 112662.

It is an arithmetic number, because the mean of its divisors is an integer number (3183488).

Almost surely, 2^68201913 is an apocalyptic number.

It is an amenable number.

68201913 is a deficient number, since it is larger than the sum of its proper divisors (33669703).

68201913 is a wasteful number, since it uses less digits than its factorization.

68201913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 68201913 is about 8258.4449504734. Note that the first 3 decimals coincide. The cubic root of 68201913 is about 408.5691008102.

The spelling of 68201913 in words is "sixty-eight million, two hundred one thousand, nine hundred thirteen".