149779423760 has 20 divisors (see below), whose sum is σ = 348237160428. Its totient is φ = 59911769472.

The previous prime is 149779423753. The next prime is 149779423769. The reversal of 149779423760 is 67324977941.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108604520704 + 41174903056 = 329552^2 + 202916^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 149779423760.

It is not an unprimeable number, because it can be changed into a prime (149779423769) 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, 936121319 + ... + 936121478.

Almost surely, 2^149779423760 is an apocalyptic number.

149779423760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149779423760 is an abundant number, since it is smaller than the sum of its proper divisors (198457736668).

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

149779423760 is a wasteful number, since it uses less digits than its factorization.

149779423760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872242810 (or 1872242804 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 149779423760 in words is "one hundred forty-nine billion, seven hundred seventy-nine million, four hundred twenty-three thousand, seven hundred sixty".