67909943607 has 16 divisors (see below), whose sum is σ = 98943033600. Its totient is φ = 41088819200.

The previous prime is 67909943533. The next prime is 67909943617. The reversal of 67909943607 is 70634990976.

It is not a de Polignac number, because 67909943607 - 2¹² = 67909939511 is a prime.

It is a super-2 number, since 2×67909943607² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67909943617) 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, 1697994 + ... + 1737527.

It is an arithmetic number, because the mean of its divisors is an integer number (6183939600).

Almost surely, 2^67909943607 is an apocalyptic number.

67909943607 is a deficient number, since it is larger than the sum of its proper divisors (31033089993).

67909943607 is a wasteful number, since it uses less digits than its factorization.

67909943607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436134.

The product of its (nonzero) digits is 15431472, while the sum is 60.

The spelling of 67909943607 in words is "sixty-seven billion, nine hundred nine million, nine hundred forty-three thousand, six hundred seven".