68513419 has 16 divisors (see below), whose sum is σ = 76091904. Its totient is φ = 61286400.

The previous prime is 68513377. The next prime is 68513443. The reversal of 68513419 is 91431586.

It is a cyclic number.

It is not a de Polignac number, because 68513419 - 2²³ = 60124811 is a prime.

It is a super-2 number, since 2×68513419² = 9388177166139122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68513479) 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, 101467 + ... + 102139.

It is an arithmetic number, because the mean of its divisors is an integer number (4755744).

Almost surely, 2^68513419 is an apocalyptic number.

68513419 is a deficient number, since it is larger than the sum of its proper divisors (7578485).

68513419 is a wasteful number, since it uses less digits than its factorization.

68513419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its digits is 25920, while the sum is 37.

The square root of 68513419 is about 8277.2833103622. The cubic root of 68513419 is about 409.1901901784.

The spelling of 68513419 in words is "sixty-eight million, five hundred thirteen thousand, four hundred nineteen".