128498178213 has 12 divisors (see below), whose sum is σ = 191595850368. Its totient is φ = 82902050280.

The previous prime is 128498178203. The next prime is 128498178217. The reversal of 128498178213 is 312871894821.

128498178213 is a `hidden beast` number, since 1 + 284 + 9 + 81 + 78 + 213 = 666.

It is not a de Polignac number, because 128498178213 - 2⁴ = 128498178197 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 128498178213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128498178217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230283195 + ... + 230283752.

It is an arithmetic number, because the mean of its divisors is an integer number (15966320864).

Almost surely, 2^128498178213 is an apocalyptic number.

It is an amenable number.

128498178213 is a deficient number, since it is larger than the sum of its proper divisors (63097672155).

128498178213 is a wasteful number, since it uses less digits than its factorization.

128498178213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460566984 (or 460566981 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The spelling of 128498178213 in words is "one hundred twenty-eight billion, four hundred ninety-eight million, one hundred seventy-eight thousand, two hundred thirteen".