149388333859 has 4 divisors (see below), whose sum is σ = 153031951800. Its totient is φ = 145744715920.

The previous prime is 149388333851. The next prime is 149388333917. The reversal of 149388333859 is 958333883941.

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 149388333859 - 2³ = 149388333851 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 149388333859.

It is not an unprimeable number, because it can be changed into a prime (149388333851) 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, 1821808909 + ... + 1821808990.

It is an arithmetic number, because the mean of its divisors is an integer number (38257987950).

Almost surely, 2^149388333859 is an apocalyptic number.

149388333859 is a deficient number, since it is larger than the sum of its proper divisors (3643617941).

149388333859 is an equidigital number, since it uses as much as digits as its factorization.

149388333859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643617940.

The product of its digits is 67184640, while the sum is 64.

The spelling of 149388333859 in words is "one hundred forty-nine billion, three hundred eighty-eight million, three hundred thirty-three thousand, eight hundred fifty-nine".