149077739520 has 576 divisors, whose sum is σ = 540400835520. Its totient is φ = 39414988800.

The previous prime is 149077739519. The next prime is 149077739543. The reversal of 149077739520 is 25937770941.

149077739520 is a `hidden beast` number, since 1 + 49 + 0 + 7 + 7 + 73 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450385755 + ... + 450386085.

It is an arithmetic number, because the mean of its divisors is an integer number (938195895).

Almost surely, 2^149077739520 is an apocalyptic number.

149077739520 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 149077739520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270200417760).

149077739520 is an abundant number, since it is smaller than the sum of its proper divisors (391323096000).

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

149077739520 is an equidigital number, since it uses as much as digits as its factorization.

149077739520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 54.

The spelling of 149077739520 in words is "one hundred forty-nine billion, seventy-seven million, seven hundred thirty-nine thousand, five hundred twenty".