149799068899 has 8 divisors (see below), whose sum is σ = 162769786880. Its totient is φ = 137337006600.

The previous prime is 149799068891. The next prime is 149799068927. The reversal of 149799068899 is 998860997941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149799068899 - 2³ = 149799068891 is a prime.

It is a super-2 number, since 2×149799068899² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149799068891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127163307 + ... + 127164484.

It is an arithmetic number, because the mean of its divisors is an integer number (20346223360).

Almost surely, 2^149799068899 is an apocalyptic number.

149799068899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149799068899 is a deficient number, since it is larger than the sum of its proper divisors (12970717981).

149799068899 is a wasteful number, since it uses less digits than its factorization.

149799068899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254327841.

The product of its (nonzero) digits is 634894848, while the sum is 79.

The spelling of 149799068899 in words is "one hundred forty-nine billion, seven hundred ninety-nine million, sixty-eight thousand, eight hundred ninety-nine".