21418622738130 has 64 divisors (see below), whose sum is σ = 52436761914240. Its totient is φ = 5597824049664.

The previous prime is 21418622738113. The next prime is 21418622738137. The reversal of 21418622738130 is 3183722681412.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21418622738130.

It is not an unprimeable number, because it can be changed into a prime (21418622738137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26649795 + ... + 27441734.

It is an arithmetic number, because the mean of its divisors is an integer number (819324404910).

Almost surely, 2^{21418622738130} is an apocalyptic number.

21418622738130 is an abundant number, since it is smaller than the sum of its proper divisors (31018139176110).

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

21418622738130 is a wasteful number, since it uses less digits than its factorization.

21418622738130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54091803.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 21418622738130 in words is "twenty-one trillion, four hundred eighteen billion, six hundred twenty-two million, seven hundred thirty-eight thousand, one hundred thirty".