149779423680 has 112 divisors (see below), whose sum is σ = 475778718240. Its totient is φ = 39921942528.

The previous prime is 149779423679. The next prime is 149779423681. The reversal of 149779423680 is 86324977941.

It is an interprime number because it is at equal distance from previous prime (149779423679) and next prime (149779423681).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149779423681) 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 15 ways as a sum of consecutive naturals, for example, 2015016 + ... + 2088024.

It is an arithmetic number, because the mean of its divisors is an integer number (4248024270).

Almost surely, 2^149779423680 is an apocalyptic number.

149779423680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149779423680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237889359120).

149779423680 is an abundant number, since it is smaller than the sum of its proper divisors (325999294560).

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

149779423680 is a wasteful number, since it uses less digits than its factorization.

149779423680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75166 (or 75156 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 149779423680 in words is "one hundred forty-nine billion, seven hundred seventy-nine million, four hundred twenty-three thousand, six hundred eighty".