21375065371460 has 96 divisors (see below), whose sum is σ = 45702359861760. Its totient is φ = 8396125291008.

The previous prime is 21375065371453. The next prime is 21375065371477. The reversal of 21375065371460 is 6417356057312.

It is a junction number, because it is equal to n+sod(n) for n = 21375065371399 and 21375065371408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243732779 + ... + 243820461.

It is an arithmetic number, because the mean of its divisors is an integer number (476066248560).

Almost surely, 2^{21375065371460} is an apocalyptic number.

21375065371460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21375065371460 is an abundant number, since it is smaller than the sum of its proper divisors (24327294490300).

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

21375065371460 is a wasteful number, since it uses less digits than its factorization.

21375065371460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88605 (or 88603 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 21375065371460 in words is "twenty-one trillion, three hundred seventy-five billion, sixty-five million, three hundred seventy-one thousand, four hundred sixty".