21414545732 has 6 divisors (see below), whose sum is σ = 37475455038. Its totient is φ = 10707272864.

The previous prime is 21414545717. The next prime is 21414545741. The reversal of 21414545732 is 23754541412.

It can be written as a sum of positive squares in only one way, i.e., 17663473216 + 3751072516 = 132904^2 + 61246^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676818213 + ... + 2676818220.

It is an arithmetic number, because the mean of its divisors is an integer number (6245909173).

Almost surely, 2^21414545732 is an apocalyptic number.

It is an amenable number.

21414545732 is a deficient number, since it is larger than the sum of its proper divisors (16060909306).

21414545732 is a wasteful number, since it uses less digits than its factorization.

21414545732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353636437 (or 5353636435 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The spelling of 21414545732 in words is "twenty-one billion, four hundred fourteen million, five hundred forty-five thousand, seven hundred thirty-two".