67138120851 has 8 divisors (see below), whose sum is σ = 90087670224. Its totient is φ = 44473659360.

The previous prime is 67138120817. The next prime is 67138120873. The reversal of 67138120851 is 15802183176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67138120851 - 2⁶ = 67138120787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67138120801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71271420 + ... + 71272361.

It is an arithmetic number, because the mean of its divisors is an integer number (11260958778).

Almost surely, 2^67138120851 is an apocalyptic number.

67138120851 is a deficient number, since it is larger than the sum of its proper divisors (22949549373).

67138120851 is a wasteful number, since it uses less digits than its factorization.

67138120851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142543941.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 67138120851 in words is "sixty-seven billion, one hundred thirty-eight million, one hundred twenty thousand, eight hundred fifty-one".