21480040510 has 16 divisors (see below), whose sum is σ = 38665742976. Its totient is φ = 8591645088.

The previous prime is 21480040489. The next prime is 21480040573. The reversal of 21480040510 is 1504008412.

It is a super-2 number, since 2×21480040510² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419632 + ... + 468028.

It is an arithmetic number, because the mean of its divisors is an integer number (2416608936).

Almost surely, 2^21480040510 is an apocalyptic number.

21480040510 is a deficient number, since it is larger than the sum of its proper divisors (17185702466).

21480040510 is a wasteful number, since it uses less digits than its factorization.

21480040510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92787.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 21480040510 its reverse (1504008412), we get a palindrome (22984048922).

The spelling of 21480040510 in words is "twenty-one billion, four hundred eighty million, forty thousand, five hundred ten".