21601384847414 has 32 divisors (see below), whose sum is σ = 33543286483680. Its totient is φ = 10420822153728.

The previous prime is 21601384847377. The next prime is 21601384847429. The reversal of 21601384847414 is 41474848310612.

It is a happy number.

It is a congruent number.

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, 1183174574 + ... + 1183192830.

It is an arithmetic number, because the mean of its divisors is an integer number (1048227702615).

Almost surely, 2^{21601384847414} is an apocalyptic number.

21601384847414 is a deficient number, since it is larger than the sum of its proper divisors (11941901636266).

21601384847414 is a wasteful number, since it uses less digits than its factorization.

21601384847414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31712.

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 21601384847414 in words is "twenty-one trillion, six hundred one billion, three hundred eighty-four million, eight hundred forty-seven thousand, four hundred fourteen".