67404775507 has 8 divisors (see below), whose sum is σ = 70417428480. Its totient is φ = 64444516680.

The previous prime is 67404775489. The next prime is 67404775513. The reversal of 67404775507 is 70557740476.

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

It is a de Polignac number, because none of the positive numbers 2^k-67404775507 is a prime.

It is a super-2 number, since 2×67404775507² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67404715507) 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 7 ways as a sum of consecutive naturals, for example, 13095907 + ... + 13101052.

It is an arithmetic number, because the mean of its divisors is an integer number (8802178560).

Almost surely, 2^67404775507 is an apocalyptic number.

67404775507 is a deficient number, since it is larger than the sum of its proper divisors (3012652973).

67404775507 is a wasteful number, since it uses less digits than its factorization.

67404775507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26197073.

The product of its (nonzero) digits is 5762400, while the sum is 52.

The spelling of 67404775507 in words is "sixty-seven billion, four hundred four million, seven hundred seventy-five thousand, five hundred seven".