133721291888 has 20 divisors (see below), whose sum is σ = 260976138720. Its totient is φ = 66372610944.

The previous prime is 133721291863. The next prime is 133721291897. The reversal of 133721291888 is 888192127331.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 30499928 + ... + 30504311.

It is an arithmetic number, because the mean of its divisors is an integer number (13048806936).

Almost surely, 2^133721291888 is an apocalyptic number.

It is an amenable number.

133721291888 is a deficient number, since it is larger than the sum of its proper divisors (127254846832).

133721291888 is a wasteful number, since it uses less digits than its factorization.

133721291888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61004384 (or 61004378 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The spelling of 133721291888 in words is "one hundred thirty-three billion, seven hundred twenty-one million, two hundred ninety-one thousand, eight hundred eighty-eight".