21514445044510 has 16 divisors (see below), whose sum is σ = 42246546633072. Its totient is φ = 7823434561600.

The previous prime is 21514445044453. The next prime is 21514445044513. The reversal of 21514445044510 is 1544054441512.

It is a super-2 number, since 2×21514445044510² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514445044513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97792931911 + ... + 97792932130.

It is an arithmetic number, because the mean of its divisors is an integer number (2640409164567).

Almost surely, 2^{21514445044510} is an apocalyptic number.

21514445044510 is a deficient number, since it is larger than the sum of its proper divisors (20732101588562).

21514445044510 is a wasteful number, since it uses less digits than its factorization.

21514445044510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195585864059.

The product of its (nonzero) digits is 256000, while the sum is 40.

The spelling of 21514445044510 in words is "twenty-one trillion, five hundred fourteen billion, four hundred forty-five million, forty-four thousand, five hundred ten".