68598800149 has 4 divisors (see below), whose sum is σ = 74835054720. Its totient is φ = 62362545580.

The previous prime is 68598800111. The next prime is 68598800159. The reversal of 68598800149 is 94100889586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68598800149 - 2¹⁵ = 68598767381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68598800093 and 68598800102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68598800159) 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 3 ways as a sum of consecutive naturals, for example, 3118127269 + ... + 3118127290.

It is an arithmetic number, because the mean of its divisors is an integer number (18708763680).

Almost surely, 2^68598800149 is an apocalyptic number.

It is an amenable number.

68598800149 is a deficient number, since it is larger than the sum of its proper divisors (6236254571).

68598800149 is a wasteful number, since it uses less digits than its factorization.

68598800149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236254570.

The product of its (nonzero) digits is 4976640, while the sum is 58.

The spelling of 68598800149 in words is "sixty-eight billion, five hundred ninety-eight million, eight hundred thousand, one hundred forty-nine".