21465043602 has 16 divisors (see below), whose sum is σ = 43101126432. Its totient is φ = 7126508000.

The previous prime is 21465043583. The next prime is 21465043637. The reversal of 21465043602 is 20634056412.

It is a super-2 number, since 2×21465043602² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7125003 + ... + 7128014.

It is an arithmetic number, because the mean of its divisors is an integer number (2693820402).

Almost surely, 2^21465043602 is an apocalyptic number.

21465043602 is an abundant number, since it is smaller than the sum of its proper divisors (21636082830).

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

21465043602 is a wasteful number, since it uses less digits than its factorization.

21465043602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253273.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 21465043602 in words is "twenty-one billion, four hundred sixty-five million, forty-three thousand, six hundred two".