21041076538674 has 16 divisors (see below), whose sum is σ = 46757947863840. Its totient is φ = 7013692179540.

The previous prime is 21041076538673. The next prime is 21041076538697. The reversal of 21041076538674 is 47683567014012.

21041076538674 is a `hidden beast` number, since 2 + 1 + 0 + 41 + 0 + 7 + 6 + 538 + 67 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 389649565531 = 21041076538674 / (2 + 1 + 0 + 4 + 1 + 0 + 7 + 6 + 5 + 3 + 8 + 6 + 7 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 21041076538674.

It is not an unprimeable number, because it can be changed into a prime (21041076538673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194824782712 + ... + 194824782819.

It is an arithmetic number, because the mean of its divisors is an integer number (2922371741490).

Almost surely, 2^{21041076538674} is an apocalyptic number.

21041076538674 is an abundant number, since it is smaller than the sum of its proper divisors (25716871325166).

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

21041076538674 is a wasteful number, since it uses less digits than its factorization.

21041076538674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389649565542 (or 389649565536 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 21041076538674 in words is "twenty-one trillion, forty-one billion, seventy-six million, five hundred thirty-eight thousand, six hundred seventy-four".