21373471576106 has 32 divisors (see below), whose sum is σ = 34707173509008. Its totient is φ = 9813028700160.

The previous prime is 21373471576091. The next prime is 21373471576139. The reversal of 21373471576106 is 60167517437312.

It can be written as a sum of positive squares in 8 ways, for example, as 11558185081 + 21361913391025 = 107509^2 + 4621895^2 .

It is a super-2 number, since 2×21373471576106² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99937046 + ... + 100150686.

Almost surely, 2^{21373471576106} is an apocalyptic number.

21373471576106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21373471576106 is a deficient number, since it is larger than the sum of its proper divisors (13333701932902).

21373471576106 is a wasteful number, since it uses less digits than its factorization.

21373471576106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233786.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 21373471576106 in words is "twenty-one trillion, three hundred seventy-three billion, four hundred seventy-one million, five hundred seventy-six thousand, one hundred six".