133781576412 has 24 divisors (see below), whose sum is σ = 340534922112. Its totient is φ = 40539871600.

The previous prime is 133781576387. The next prime is 133781576429. The reversal of 133781576412 is 214675187331.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506748264 + ... + 506748527.

It is an arithmetic number, because the mean of its divisors is an integer number (14188955088).

Almost surely, 2^133781576412 is an apocalyptic number.

133781576412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133781576412 is an abundant number, since it is smaller than the sum of its proper divisors (206753345700).

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

133781576412 is a wasteful number, since it uses less digits than its factorization.

133781576412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013496809 (or 1013496807 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The spelling of 133781576412 in words is "one hundred thirty-three billion, seven hundred eighty-one million, five hundred seventy-six thousand, four hundred twelve".