133870433985648 has 30 divisors (see below), whose sum is σ = 374651284001904. Its totient is φ = 44623477995168.

The previous prime is 133870433985601. The next prime is 133870433985707. The reversal of 133870433985648 is 846589334078331.

133870433985648 is a `hidden beast` number, since 1 + 3 + 3 + 8 + 70 + 433 + 9 + 85 + 6 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464827895640 + ... + 464827895927.

Almost surely, 2^{133870433985648} is an apocalyptic number.

133870433985648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133870433985648 is an abundant number, since it is smaller than the sum of its proper divisors (240780850016256).

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

133870433985648 is a wasteful number, since it uses less digits than its factorization.

133870433985648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929655791581 (or 929655791572 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 72.

The spelling of 133870433985648 in words is "one hundred thirty-three trillion, eight hundred seventy billion, four hundred thirty-three million, nine hundred eighty-five thousand, six hundred forty-eight".