67390751005 has 4 divisors (see below), whose sum is σ = 80868901212. Its totient is φ = 53912600800.

The previous prime is 67390750969. The next prime is 67390751053. The reversal of 67390751005 is 50015709376.

67390751005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 25130492676 + 42260258329 = 158526^2 + 205573^2 .

It is not a de Polignac number, because 67390751005 - 2⁷ = 67390750877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6739075096 + ... + 6739075105.

It is an arithmetic number, because the mean of its divisors is an integer number (20217225303).

Almost surely, 2^67390751005 is an apocalyptic number.

It is an amenable number.

67390751005 is a deficient number, since it is larger than the sum of its proper divisors (13478150207).

67390751005 is a wasteful number, since it uses less digits than its factorization.

67390751005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13478150206.

The product of its (nonzero) digits is 198450, while the sum is 43.

The spelling of 67390751005 in words is "sixty-seven billion, three hundred ninety million, seven hundred fifty-one thousand, five".