67874836449 has 16 divisors (see below), whose sum is σ = 103953345408. Its totient is φ = 38588737152.

The previous prime is 67874836427. The next prime is 67874836451. The reversal of 67874836449 is 94463847876.

It is not a de Polignac number, because 67874836449 - 2²³ = 67866447841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67874836449.

It is not an unprimeable number, because it can be changed into a prime (67874836349) 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, 8199252 + ... + 8207525.

It is an arithmetic number, because the mean of its divisors is an integer number (6497084088).

Almost surely, 2^67874836449 is an apocalyptic number.

It is an amenable number.

67874836449 is a deficient number, since it is larger than the sum of its proper divisors (36078508959).

67874836449 is a wasteful number, since it uses less digits than its factorization.

67874836449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16406984.

The product of its digits is 195084288, while the sum is 66.

The spelling of 67874836449 in words is "sixty-seven billion, eight hundred seventy-four million, eight hundred thirty-six thousand, four hundred forty-nine".