21480191298510 has 96 divisors (see below), whose sum is σ = 60790683153312. Its totient is φ = 4842501027840.

The previous prime is 21480191298491. The next prime is 21480191298521. The reversal of 21480191298510 is 1589219108412.

It is a super-2 number, since 2×21480191298510² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99977451 + ... + 100192070.

It is an arithmetic number, because the mean of its divisors is an integer number (633236282847).

Almost surely, 2^{21480191298510} is an apocalyptic number.

21480191298510 is an abundant number, since it is smaller than the sum of its proper divisors (39310491854802).

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

21480191298510 is a wasteful number, since it uses less digits than its factorization.

21480191298510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200169618 (or 200169611 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 51.

The spelling of 21480191298510 in words is "twenty-one trillion, four hundred eighty billion, one hundred ninety-one million, two hundred ninety-eight thousand, five hundred ten".