149445387450 has 384 divisors, whose sum is σ = 438451937280. Its totient is φ = 37368000000.

The previous prime is 149445387449. The next prime is 149445387521. The reversal of 149445387450 is 54783544941.

149445387450 is a `hidden beast` number, since 1 + 494 + 4 + 5 + 38 + 74 + 50 = 666.

149445387450 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 191 ways as a sum of consecutive naturals, for example, 430678177 + ... + 430678523.

It is an arithmetic number, because the mean of its divisors is an integer number (1141801920).

Almost surely, 2^149445387450 is an apocalyptic number.

149445387450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149445387450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219225968640).

149445387450 is an abundant number, since it is smaller than the sum of its proper divisors (289006549830).

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

149445387450 is a wasteful number, since it uses less digits than its factorization.

149445387450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 149445387450 in words is "one hundred forty-nine billion, four hundred forty-five million, three hundred eighty-seven thousand, four hundred fifty".