133138757578 has 16 divisors (see below), whose sum is σ = 202629993984. Its totient is φ = 65601941440.

The previous prime is 133138757569. The next prime is 133138757579. The reversal of 133138757578 is 875757831331.

It is not an unprimeable number, because it can be changed into a prime (133138757579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587775 + ... + 1669522.

It is an arithmetic number, because the mean of its divisors is an integer number (12664374624).

Almost surely, 2^133138757578 is an apocalyptic number.

133138757578 is a deficient number, since it is larger than the sum of its proper divisors (69491236406).

133138757578 is a wasteful number, since it uses less digits than its factorization.

133138757578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257597.

The product of its digits is 14817600, while the sum is 58.

The spelling of 133138757578 in words is "one hundred thirty-three billion, one hundred thirty-eight million, seven hundred fifty-seven thousand, five hundred seventy-eight".