68061379 has 4 divisors (see below), whose sum is σ = 68312800. Its totient is φ = 67809960.

The previous prime is 68061377. The next prime is 68061403. The reversal of 68061379 is 97316086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68061379 - 2¹ = 68061377 is a prime.

It is a super-2 number, since 2×68061379² = 9264702622763282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68061377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125304 + ... + 125845.

It is an arithmetic number, because the mean of its divisors is an integer number (17078200).

Almost surely, 2^68061379 is an apocalyptic number.

68061379 is a deficient number, since it is larger than the sum of its proper divisors (251421).

68061379 is a wasteful number, since it uses less digits than its factorization.

68061379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251420.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 68061379 is about 8249.9320603263. The cubic root of 68061379 is about 408.2882810584.

The spelling of 68061379 in words is "sixty-eight million, sixty-one thousand, three hundred seventy-nine".