67868051 has 4 divisors (see below), whose sum is σ = 68980704. Its totient is φ = 66755400.

The previous prime is 67868041. The next prime is 67868069. The reversal of 67868051 is 15086876.

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 67868051 - 2¹⁰ = 67867027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67868011) 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, 556235 + ... + 556356.

It is an arithmetic number, because the mean of its divisors is an integer number (17245176).

Almost surely, 2^67868051 is an apocalyptic number.

67868051 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

67868051 is a deficient number, since it is larger than the sum of its proper divisors (1112653).

67868051 is a wasteful number, since it uses less digits than its factorization.

67868051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112652.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 67868051 is about 8238.2067830323. The cubic root of 67868051 is about 407.9013341932.

The spelling of 67868051 in words is "sixty-seven million, eight hundred sixty-eight thousand, fifty-one".