21480360602 has 4 divisors (see below), whose sum is σ = 32220540906. Its totient is φ = 10740180300.

The previous prime is 21480360589. The next prime is 21480360641. The reversal of 21480360602 is 20606308412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21447309601 + 33051001 = 146449^2 + 5749^2 .

It is a super-2 number, since 2×21480360602² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5370090149 + ... + 5370090152.

Almost surely, 2^21480360602 is an apocalyptic number.

21480360602 is a deficient number, since it is larger than the sum of its proper divisors (10740180304).

21480360602 is a wasteful number, since it uses less digits than its factorization.

21480360602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740180303.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 21480360602 in words is "twenty-one billion, four hundred eighty million, three hundred sixty thousand, six hundred two".