133612857380 has 24 divisors (see below), whose sum is σ = 287430587640. Its totient is φ = 52141602560.

The previous prime is 133612857373. The next prime is 133612857397. The reversal of 133612857380 is 83758216331.

133612857380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 440412196 + 133172445184 = 20986^2 + 364928^2 .

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 7 ways as a sum of consecutive naturals, for example, 81470435 + ... + 81472074.

It is an arithmetic number, because the mean of its divisors is an integer number (11976274485).

Almost surely, 2^133612857380 is an apocalyptic number.

133612857380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133612857380 is an abundant number, since it is smaller than the sum of its proper divisors (153817730260).

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

133612857380 is a wasteful number, since it uses less digits than its factorization.

133612857380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162942559 (or 162942557 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 133612857380 in words is "one hundred thirty-three billion, six hundred twelve million, eight hundred fifty-seven thousand, three hundred eighty".