67415076121 has 4 divisors (see below), whose sum is σ = 71380668852. Its totient is φ = 63449483392.

The previous prime is 67415076107. The next prime is 67415076149. The reversal of 67415076121 is 12167051476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55410806025 + 12004270096 = 235395^2 + 109564^2 .

It is a cyclic number.

It is not a de Polignac number, because 67415076121 - 2¹⁷ = 67414945049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67415076161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1982796340 + ... + 1982796373.

It is an arithmetic number, because the mean of its divisors is an integer number (17845167213).

Almost surely, 2^67415076121 is an apocalyptic number.

It is an amenable number.

67415076121 is a deficient number, since it is larger than the sum of its proper divisors (3965592731).

67415076121 is a wasteful number, since it uses less digits than its factorization.

67415076121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965592730.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 67415076121 in words is "sixty-seven billion, four hundred fifteen million, seventy-six thousand, one hundred twenty-one".