67378851 has 16 divisors (see below), whose sum is σ = 100202400. Its totient is φ = 44747424.

The previous prime is 67378823. The next prime is 67378859. The reversal of 67378851 is 15887376.

It is not a de Polignac number, because 67378851 - 2⁷ = 67378723 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67378797 and 67378806.

It is not an unprimeable number, because it can be changed into a prime (67378859) 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, 2625 + ... + 11901.

It is an arithmetic number, because the mean of its divisors is an integer number (6262650).

Almost surely, 2^67378851 is an apocalyptic number.

67378851 is a deficient number, since it is larger than the sum of its proper divisors (32823549).

67378851 is a wasteful number, since it uses less digits than its factorization.

67378851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555 (or 9549 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 67378851 is about 8208.4621580415. The cubic root of 67378851 is about 406.9189047740.

It can be divided in two parts, 673 and 78851, that added together give a square (79524 = 282²).

The spelling of 67378851 in words is "sixty-seven million, three hundred seventy-eight thousand, eight hundred fifty-one".