68981415 has 16 divisors (see below), whose sum is σ = 111349728. Its totient is φ = 36463616.

The previous prime is 68981389. The next prime is 68981449. The reversal of 68981415 is 51418986.

It is a cyclic number.

It is not a de Polignac number, because 68981415 - 2¹⁵ = 68948647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18654 + ... + 22043.

It is an arithmetic number, because the mean of its divisors is an integer number (6959358).

Almost surely, 2^68981415 is an apocalyptic number.

68981415 is a deficient number, since it is larger than the sum of its proper divisors (42368313).

68981415 is a wasteful number, since it uses less digits than its factorization.

68981415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40818.

The product of its digits is 69120, while the sum is 42.

The square root of 68981415 is about 8305.5051020392. The cubic root of 68981415 is about 410.1197647346.

It can be divided in two parts, 68981 and 415, that added together give a palindrome (69396).

The spelling of 68981415 in words is "sixty-eight million, nine hundred eighty-one thousand, four hundred fifteen".