12641420354 has 32 divisors (see below), whose sum is σ = 20404037376. Its totient is φ = 5852528640.

The previous prime is 12641420263. The next prime is 12641420369. The reversal of 12641420354 is 45302414621.

It is a self number, because there is not a number n which added to its sum of digits gives 12641420354.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170242 + ... + 1180994.

It is an arithmetic number, because the mean of its divisors is an integer number (637626168).

Almost surely, 2^12641420354 is an apocalyptic number.

12641420354 is a deficient number, since it is larger than the sum of its proper divisors (7762617022).

12641420354 is a wasteful number, since it uses less digits than its factorization.

12641420354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 12641420354 its reverse (45302414621), we get a palindrome (57943834975).

The spelling of 12641420354 in words is "twelve billion, six hundred forty-one million, four hundred twenty thousand, three hundred fifty-four".