13000878033 has 48 divisors (see below), whose sum is σ = 20555586240. Its totient is φ = 7260359040.

The previous prime is 13000878029. The next prime is 13000878047. The reversal of 13000878033 is 33087800031.

It is not a de Polignac number, because 13000878033 - 2² = 13000878029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 13000877985 and 13000878003.

It is not an unprimeable number, because it can be changed into a prime (13000878433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3079398 + ... + 3083616.

It is an arithmetic number, because the mean of its divisors is an integer number (428241380).

Almost surely, 2^13000878033 is an apocalyptic number.

13000878033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13000878033 is a deficient number, since it is larger than the sum of its proper divisors (7554708207).

13000878033 is a wasteful number, since it uses less digits than its factorization.

13000878033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 13000878033 in words is "thirteen billion, eight hundred seventy-eight thousand, thirty-three".