149814814815 has 40 divisors (see below), whose sum is σ = 268849822560. Its totient is φ = 79814092608.

The previous prime is 149814814811. The next prime is 149814814841. The reversal of 149814814815 is 518418418941.

149814814815 is a `hidden beast` number, since 1 + 4 + 9 + 81 + 4 + 81 + 481 + 5 = 666.

It is not a de Polignac number, because 149814814815 - 2² = 149814814811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149814814811) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 170937 + ... + 573453.

It is an arithmetic number, because the mean of its divisors is an integer number (6721245564).

Almost surely, 2^149814814815 is an apocalyptic number.

149814814815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149814814815 is a deficient number, since it is larger than the sum of its proper divisors (119035007745).

149814814815 is an equidigital number, since it uses as much as digits as its factorization.

149814814815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403453 (or 403444 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 54.

The spelling of 149814814815 in words is "one hundred forty-nine billion, eight hundred fourteen million, eight hundred fourteen thousand, eight hundred fifteen".