21010241458 has 32 divisors (see below), whose sum is σ = 34096147200. Its totient is φ = 9678299904.

The previous prime is 21010241429. The next prime is 21010241459. The reversal of 21010241458 is 85414201012.

It is a super-2 number, since 2×21010241458² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21010241459) 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 15 ways as a sum of consecutive naturals, for example, 242938 + ... + 317866.

It is an arithmetic number, because the mean of its divisors is an integer number (1065504600).

Almost surely, 2^21010241458 is an apocalyptic number.

21010241458 is a deficient number, since it is larger than the sum of its proper divisors (13085905742).

21010241458 is a wasteful number, since it uses less digits than its factorization.

21010241458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75154.

The product of its (nonzero) digits is 2560, while the sum is 28.

The spelling of 21010241458 in words is "twenty-one billion, ten million, two hundred forty-one thousand, four hundred fifty-eight".