21134462445 has 12 divisors (see below), whose sum is σ = 36633068316. Its totient is φ = 11271713280.

The previous prime is 21134462423. The next prime is 21134462467. The reversal of 21134462445 is 54426443112.

21134462445 is a `hidden beast` number, since 2 + 113 + 44 + 62 + 445 = 666.

It is an interprime number because it is at equal distance from previous prime (21134462423) and next prime (21134462467).

It can be written as a sum of positive squares in 2 ways, for example, as 3671632836 + 17462829609 = 60594^2 + 132147^2 .

It is not a de Polignac number, because 21134462445 - 2⁸ = 21134462189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234827316 + ... + 234827405.

It is an arithmetic number, because the mean of its divisors is an integer number (3052755693).

Almost surely, 2^21134462445 is an apocalyptic number.

It is an amenable number.

21134462445 is a deficient number, since it is larger than the sum of its proper divisors (15498605871).

21134462445 is a wasteful number, since it uses less digits than its factorization.

21134462445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469654732 (or 469654729 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The spelling of 21134462445 in words is "twenty-one billion, one hundred thirty-four million, four hundred sixty-two thousand, four hundred forty-five".