133870763464872 has 128 divisors (see below), whose sum is σ = 388788083946240. Its totient is φ = 37618867169280.

The previous prime is 133870763464787. The next prime is 133870763464873. The reversal of 133870763464872 is 278464367078331.

It is a junction number, because it is equal to n+sod(n) for n = 133870763464797 and 133870763464806.

It is not an unprimeable number, because it can be changed into a prime (133870763464873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134542218 + ... + 135533574.

It is an arithmetic number, because the mean of its divisors is an integer number (3037406905830).

Almost surely, 2^{133870763464872} is an apocalyptic number.

133870763464872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133870763464872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194394041973120).

133870763464872 is an abundant number, since it is smaller than the sum of its proper divisors (254917320481368).

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

133870763464872 is a wasteful number, since it uses less digits than its factorization.

133870763464872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004611 (or 1004607 counting only the distinct ones).

The product of its (nonzero) digits is 682795008, while the sum is 69.

The spelling of 133870763464872 in words is "one hundred thirty-three trillion, eight hundred seventy billion, seven hundred sixty-three million, four hundred sixty-four thousand, eight hundred seventy-two".