8042269478821 has 8 divisors (see below), whose sum is σ = 8055446379840. Its totient is φ = 8029093039968.

The previous prime is 8042269478779. The next prime is 8042269478843. The reversal of 8042269478821 is 1288749622408.

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

It is a cyclic number.

It is not a de Polignac number, because 8042269478821 - 2¹⁵ = 8042269446053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8042269478821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8042269478861) 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, 61392090 + ... + 61522948.

It is an arithmetic number, because the mean of its divisors is an integer number (1006930797480).

Almost surely, 2^{8042269478821} is an apocalyptic number.

It is an amenable number.

8042269478821 is a deficient number, since it is larger than the sum of its proper divisors (13176901019).

8042269478821 is a wasteful number, since it uses less digits than its factorization.

8042269478821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231083.

The product of its (nonzero) digits is 24772608, while the sum is 61.

The spelling of 8042269478821 in words is "eight trillion, forty-two billion, two hundred sixty-nine million, four hundred seventy-eight thousand, eight hundred twenty-one".