67878051 has 16 divisors (see below), whose sum is σ = 95462400. Its totient is φ = 42782688.

The previous prime is 67878047. The next prime is 67878061. The reversal of 67878051 is 15087876.

It is not a de Polignac number, because 67878051 - 2² = 67878047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67877994 and 67878012.

It is not an unprimeable number, because it can be changed into a prime (67878061) 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, 37710 + ... + 39468.

It is an arithmetic number, because the mean of its divisors is an integer number (5966400).

Almost surely, 2^67878051 is an apocalyptic number.

67878051 is a deficient number, since it is larger than the sum of its proper divisors (27584349).

67878051 is a wasteful number, since it uses less digits than its factorization.

67878051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 67878051 is about 8238.8136888754. The cubic root of 67878051 is about 407.9213672473.

The spelling of 67878051 in words is "sixty-seven million, eight hundred seventy-eight thousand, fifty-one".