8864741821 has 16 divisors (see below), whose sum is σ = 10148624640. Its totient is φ = 7675387200.

The previous prime is 8864741807. The next prime is 8864741833. The reversal of 8864741821 is 1281474688.

It is not a de Polignac number, because 8864741821 - 2⁵ = 8864741789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8864741861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152725 + ... + 202618.

It is an arithmetic number, because the mean of its divisors is an integer number (634289040).

Almost surely, 2^8864741821 is an apocalyptic number.

It is an amenable number.

8864741821 is a deficient number, since it is larger than the sum of its proper divisors (1283882819).

8864741821 is a wasteful number, since it uses less digits than its factorization.

8864741821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355476.

The product of its digits is 688128, while the sum is 49.

The square root of 8864741821 is about 94152.7579043758. The cubic root of 8864741821 is about 2069.6108723454.

The spelling of 8864741821 in words is "eight billion, eight hundred sixty-four million, seven hundred forty-one thousand, eight hundred twenty-one".