133038012878 has 4 divisors (see below), whose sum is σ = 199557019320. Its totient is φ = 66519006438.

The previous prime is 133038012839. The next prime is 133038012907. The reversal of 133038012878 is 878210830331.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×133038012878² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33259503218 + ... + 33259503221.

It is an arithmetic number, because the mean of its divisors is an integer number (49889254830).

Almost surely, 2^133038012878 is an apocalyptic number.

133038012878 is a deficient number, since it is larger than the sum of its proper divisors (66519006442).

133038012878 is an equidigital number, since it uses as much as digits as its factorization.

133038012878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66519006441.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 133038012878 in words is "one hundred thirty-three billion, thirty-eight million, twelve thousand, eight hundred seventy-eight".