21244800874 has 8 divisors (see below), whose sum is σ = 34764219648. Its totient is φ = 9656727660.

The previous prime is 21244800853. The next prime is 21244800877. The reversal of 21244800874 is 47800844212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21244800874² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21244800877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482836362 + ... + 482836405.

It is an arithmetic number, because the mean of its divisors is an integer number (4345527456).

Almost surely, 2^21244800874 is an apocalyptic number.

21244800874 is a deficient number, since it is larger than the sum of its proper divisors (13519418774).

21244800874 is a wasteful number, since it uses less digits than its factorization.

21244800874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965672780.

The product of its (nonzero) digits is 114688, while the sum is 40.

The spelling of 21244800874 in words is "twenty-one billion, two hundred forty-four million, eight hundred thousand, eight hundred seventy-four".