133870428472 has 32 divisors (see below), whose sum is σ = 273901697280. Its totient is φ = 60833345760.

The previous prime is 133870428457. The next prime is 133870428481. The reversal of 133870428472 is 274824078331.

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, 111793 + ... + 529375.

It is an arithmetic number, because the mean of its divisors is an integer number (8559428040).

Almost surely, 2^133870428472 is an apocalyptic number.

It is an amenable number.

133870428472 is an abundant number, since it is smaller than the sum of its proper divisors (140031268808).

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

133870428472 is a wasteful number, since it uses less digits than its factorization.

133870428472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421243 (or 421239 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 133870428472 in words is "one hundred thirty-three billion, eight hundred seventy million, four hundred twenty-eight thousand, four hundred seventy-two".