133288688428 has 48 divisors (see below), whose sum is σ = 282295347264. Its totient is φ = 53756467200.

The previous prime is 133288688399. The next prime is 133288688431. The reversal of 133288688428 is 824886882331.

It is a super-2 number, since 2×133288688428² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5153128 + ... + 5178928.

It is an arithmetic number, because the mean of its divisors is an integer number (5881153068).

Almost surely, 2^133288688428 is an apocalyptic number.

It is an amenable number.

133288688428 is an abundant number, since it is smaller than the sum of its proper divisors (149006658836).

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

133288688428 is a wasteful number, since it uses less digits than its factorization.

133288688428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36682 (or 36680 counting only the distinct ones).

The product of its digits is 28311552, while the sum is 61.

The spelling of 133288688428 in words is "one hundred thirty-three billion, two hundred eighty-eight million, six hundred eighty-eight thousand, four hundred twenty-eight".