8270450380421 has 4 divisors (see below), whose sum is σ = 8370094360992. Its totient is φ = 8170806399852.

The previous prime is 8270450380393. The next prime is 8270450380433. The reversal of 8270450380421 is 1240830540728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8270450380421 - 2³⁸ = 7995572473477 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 (8270450380471) 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, 49821990161 + ... + 49821990326.

It is an arithmetic number, because the mean of its divisors is an integer number (2092523590248).

Almost surely, 2^{8270450380421} is an apocalyptic number.

It is an amenable number.

8270450380421 is a deficient number, since it is larger than the sum of its proper divisors (99643980571).

8270450380421 is an equidigital number, since it uses as much as digits as its factorization.

8270450380421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99643980570.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 8270450380421 in words is "eight trillion, two hundred seventy billion, four hundred fifty million, three hundred eighty thousand, four hundred twenty-one".