21062470675 has 12 divisors (see below), whose sum is σ = 26144063280. Its totient is φ = 16832815520.

The previous prime is 21062470651. The next prime is 21062470679. The reversal of 21062470675 is 57607426012.

It is not a de Polignac number, because 21062470675 - 2¹⁷ = 21062339603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21062470679) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 403960 + ... + 453109.

It is an arithmetic number, because the mean of its divisors is an integer number (2178671940).

Almost surely, 2^21062470675 is an apocalyptic number.

21062470675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21062470675 is a deficient number, since it is larger than the sum of its proper divisors (5081592605).

21062470675 is an equidigital number, since it uses as much as digits as its factorization.

21062470675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858062 (or 858057 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

Adding to 21062470675 its reverse (57607426012), we get a palindrome (78669896687).

The spelling of 21062470675 in words is "twenty-one billion, sixty-two million, four hundred seventy thousand, six hundred seventy-five".