10821577458 has 16 divisors (see below), whose sum is σ = 21649615776. Its totient is φ = 3606115680.

The previous prime is 10821577457. The next prime is 10821577489. The reversal of 10821577458 is 85477512801.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10821577457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247291 + ... + 287742.

It is an arithmetic number, because the mean of its divisors is an integer number (1353100986).

Almost surely, 2^10821577458 is an apocalyptic number.

10821577458 is an abundant number, since it is smaller than the sum of its proper divisors (10828038318).

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

10821577458 is a wasteful number, since it uses less digits than its factorization.

10821577458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538409.

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 10821577458 in words is "ten billion, eight hundred twenty-one million, five hundred seventy-seven thousand, four hundred fifty-eight".