67899347299 has 4 divisors (see below), whose sum is σ = 77599254064. Its totient is φ = 58199440536.

The previous prime is 67899347279. The next prime is 67899347303. The reversal of 67899347299 is 99274399876.

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

It is a cyclic number.

It is not a de Polignac number, because 67899347299 - 2⁹ = 67899346787 is a prime.

It is a super-2 number, since 2×67899347299² (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 (67899347239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4849953372 + ... + 4849953385.

It is an arithmetic number, because the mean of its divisors is an integer number (19399813516).

Almost surely, 2^67899347299 is an apocalyptic number.

67899347299 is a deficient number, since it is larger than the sum of its proper divisors (9699906765).

67899347299 is an equidigital number, since it uses as much as digits as its factorization.

67899347299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9699906764.

The product of its digits is 370355328, while the sum is 73.

The spelling of 67899347299 in words is "sixty-seven billion, eight hundred ninety-nine million, three hundred forty-seven thousand, two hundred ninety-nine".