67961207899 has 12 divisors (see below), whose sum is σ = 75626101488. Its totient is φ = 60709752720.

The previous prime is 67961207893. The next prime is 67961207983. The reversal of 67961207899 is 99870216976.

It is not a de Polignac number, because 67961207899 - 2¹³ = 67961199707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67961207899.

It is not an unprimeable number, because it can be changed into a prime (67961207893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2707479 + ... + 2732464.

It is an arithmetic number, because the mean of its divisors is an integer number (6302175124).

Almost surely, 2^67961207899 is an apocalyptic number.

67961207899 is a deficient number, since it is larger than the sum of its proper divisors (7664893589).

67961207899 is a wasteful number, since it uses less digits than its factorization.

67961207899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440018 (or 5439987 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 64.

The spelling of 67961207899 in words is "sixty-seven billion, nine hundred sixty-one million, two hundred seven thousand, eight hundred ninety-nine".