21373540264014 has 64 divisors (see below), whose sum is σ = 43799148804096. Its totient is φ = 6951495491424.

The previous prime is 21373540263973. The next prime is 21373540264033. The reversal of 21373540264014 is 41046204537312.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18436429 + ... + 19561415.

It is an arithmetic number, because the mean of its divisors is an integer number (684361700064).

Almost surely, 2^{21373540264014} is an apocalyptic number.

21373540264014 is an abundant number, since it is smaller than the sum of its proper divisors (22425608540082).

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

21373540264014 is a wasteful number, since it uses less digits than its factorization.

21373540264014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125509.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 21373540264014 in words is "twenty-one trillion, three hundred seventy-three billion, five hundred forty million, two hundred sixty-four thousand, fourteen".