149549694848 has 128 divisors (see below), whose sum is σ = 306751536000. Its totient is φ = 72603648000.

The previous prime is 149549694817. The next prime is 149549694859. The reversal of 149549694848 is 848496945941.

149549694848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×149549694848² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184857068 + ... + 184857876.

It is an arithmetic number, because the mean of its divisors is an integer number (2396496375).

Almost surely, 2^149549694848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149549694848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153375768000).

149549694848 is an abundant number, since it is smaller than the sum of its proper divisors (157201841152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149549694848 is a wasteful number, since it uses less digits than its factorization.

149549694848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1172 counting only the distinct ones).

The product of its digits is 358318080, while the sum is 71.

The spelling of 149549694848 in words is "one hundred forty-nine billion, five hundred forty-nine million, six hundred ninety-four thousand, eight hundred forty-eight".