8420743052902 has 8 divisors (see below), whose sum is σ = 12631150982016. Its totient is φ = 4210359392232.

The previous prime is 8420743052881. The next prime is 8420743052903. The reversal of 8420743052902 is 2092503470248.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420743052903) 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, 5173318 + ... + 6603385.

It is an arithmetic number, because the mean of its divisors is an integer number (1578893872752).

Almost surely, 2^{8420743052902} is an apocalyptic number.

8420743052902 is a deficient number, since it is larger than the sum of its proper divisors (4210407929114).

8420743052902 is a wasteful number, since it uses less digits than its factorization.

8420743052902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12134222.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 8420743052902 in words is "eight trillion, four hundred twenty billion, seven hundred forty-three million, fifty-two thousand, nine hundred two".