12408953658 has 8 divisors (see below), whose sum is σ = 24817907328. Its totient is φ = 4136317884.

The previous prime is 12408953657. The next prime is 12408953659. The reversal of 12408953658 is 85635980421.

It is an interprime number because it is at equal distance from previous prime (12408953657) and next prime (12408953659).

It is a sphenic number, since it is the product of 3 distinct primes.

12408953658 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12408953658.

It is not an unprimeable number, because it can be changed into a prime (12408953657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034079466 + ... + 1034079477.

It is an arithmetic number, because the mean of its divisors is an integer number (3102238416).

Almost surely, 2^12408953658 is an apocalyptic number.

12408953658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12408953658 is a wasteful number, since it uses less digits than its factorization.

12408953658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068158948.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 12408953658 in words is "twelve billion, four hundred eight million, nine hundred fifty-three thousand, six hundred fifty-eight".