21674210211040 has 96 divisors (see below), whose sum is σ = 52649233338240. Its totient is φ = 8426784460800.

The previous prime is 21674210211007. The next prime is 21674210211061. The reversal of 21674210211040 is 4011201247612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21674210210993 and 21674210211011.

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, 4376616 + ... + 7905895.

It is an arithmetic number, because the mean of its divisors is an integer number (548429513940).

Almost surely, 2^{21674210211040} is an apocalyptic number.

21674210211040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21674210211040 is an abundant number, since it is smaller than the sum of its proper divisors (30975023127200).

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

21674210211040 is a wasteful number, since it uses less digits than its factorization.

21674210211040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12282836 (or 12282828 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

Adding to 21674210211040 its reverse (4011201247612), we get a palindrome (25685411458652).

The spelling of 21674210211040 in words is "twenty-one trillion, six hundred seventy-four billion, two hundred ten million, two hundred eleven thousand, forty".