67878091029 has 16 divisors (see below), whose sum is σ = 103440924800. Its totient is φ = 38784614400.

The previous prime is 67878091019. The next prime is 67878091031. The reversal of 67878091029 is 92019087876.

It is not a de Polignac number, because 67878091029 - 2¹³ = 67878082837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67878091029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67878091019) 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, 190197 + ... + 414645.

It is an arithmetic number, because the mean of its divisors is an integer number (6465057800).

Almost surely, 2^67878091029 is an apocalyptic number.

It is an amenable number.

67878091029 is a deficient number, since it is larger than the sum of its proper divisors (35562833771).

67878091029 is a wasteful number, since it uses less digits than its factorization.

67878091029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238860.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The spelling of 67878091029 in words is "sixty-seven billion, eight hundred seventy-eight million, ninety-one thousand, twenty-nine".