148044477780 has 144 divisors (see below), whose sum is σ = 472864392000. Its totient is φ = 37387975680.

The previous prime is 148044477731. The next prime is 148044477787. The reversal of 148044477780 is 87774440841.

148044477780 is a `hidden beast` number, since 1 + 480 + 44 + 47 + 7 + 7 + 80 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148044477787) 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 47 ways as a sum of consecutive naturals, for example, 13842235 + ... + 13852925.

It is an arithmetic number, because the mean of its divisors is an integer number (3283780500).

Almost surely, 2^148044477780 is an apocalyptic number.

148044477780 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 148044477780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236432196000).

148044477780 is an abundant number, since it is smaller than the sum of its proper divisors (324819914220).

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

148044477780 is a wasteful number, since it uses less digits than its factorization.

148044477780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14774 (or 14769 counting only the distinct ones).

The product of its (nonzero) digits is 5619712, while the sum is 54.

The spelling of 148044477780 in words is "one hundred forty-eight billion, forty-four million, four hundred seventy-seven thousand, seven hundred eighty".