68081455 has 16 divisors (see below), whose sum is σ = 88845120. Its totient is φ = 49782528.

The previous prime is 68081441. The next prime is 68081459. The reversal of 68081455 is 55418086.

It is a cyclic number.

It is not a de Polignac number, because 68081455 - 2⁵ = 68081423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68081459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611 + ... + 11779.

It is an arithmetic number, because the mean of its divisors is an integer number (5552820).

Almost surely, 2^68081455 is an apocalyptic number.

68081455 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68081455 is a deficient number, since it is larger than the sum of its proper divisors (20763665).

68081455 is a wasteful number, since it uses less digits than its factorization.

68081455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10290.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 68081455 is about 8251.1487079073. The cubic root of 68081455 is about 408.3284212468.

The spelling of 68081455 in words is "sixty-eight million, eighty-one thousand, four hundred fifty-five".