21900241510 has 32 divisors (see below), whose sum is σ = 47423082240. Its totient is φ = 7113461472.

The previous prime is 21900241477. The next prime is 21900241537. The reversal of 21900241510 is 1514200912.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8231844 + ... + 8234503.

It is an arithmetic number, because the mean of its divisors is an integer number (1481971320).

Almost surely, 2^21900241510 is an apocalyptic number.

21900241510 is an abundant number, since it is smaller than the sum of its proper divisors (25522840730).

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

21900241510 is a wasteful number, since it uses less digits than its factorization.

21900241510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16466380.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 21900241510 in words is "twenty-one billion, nine hundred million, two hundred forty-one thousand, five hundred ten".