21473010886488 has 64 divisors (see below), whose sum is σ = 62090633928960. Its totient is φ = 6061228542336.

The previous prime is 21473010886403. The next prime is 21473010886493. The reversal of 21473010886488 is 88468801037412.

It is a super-2 number, since 2×21473010886488² (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 769959195 + ... + 769987082.

It is an arithmetic number, because the mean of its divisors is an integer number (970166155140).

Almost surely, 2^{21473010886488} is an apocalyptic number.

21473010886488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21473010886488 is an abundant number, since it is smaller than the sum of its proper divisors (40617623042472).

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

21473010886488 is a wasteful number, since it uses less digits than its factorization.

21473010886488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539946376 (or 1539946372 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 21473010886488 in words is "twenty-one trillion, four hundred seventy-three billion, ten million, eight hundred eighty-six thousand, four hundred eighty-eight".