21514369045 has 16 divisors (see below), whose sum is σ = 27812559600. Its totient is φ = 15882177024.

The previous prime is 21514369031. The next prime is 21514369049. The reversal of 21514369045 is 54096341512.

It can be written as a sum of positive squares in 8 ways, for example, as 5271631236 + 16242737809 = 72606^2 + 127447^2 .

It is a cyclic number.

It is not a de Polignac number, because 21514369045 - 2¹³ = 21514360853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21514368989 and 21514369007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514369049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143907 + ... + 252463.

It is an arithmetic number, because the mean of its divisors is an integer number (1738284975).

Almost surely, 2^21514369045 is an apocalyptic number.

It is an amenable number.

21514369045 is a deficient number, since it is larger than the sum of its proper divisors (6298190555).

21514369045 is a wasteful number, since it uses less digits than its factorization.

21514369045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111624.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 21514369045 in words is "twenty-one billion, five hundred fourteen million, three hundred sixty-nine thousand, forty-five".