421802768343 has 16 divisors (see below), whose sum is σ = 617077731456. Its totient is φ = 254160361440.

The previous prime is 421802768267. The next prime is 421802768351. The reversal of 421802768343 is 343867208124.

It is not a de Polignac number, because 421802768343 - 2¹² = 421802764247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421802768292 and 421802768301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421802768353) 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, 36936205 + ... + 36947622.

It is an arithmetic number, because the mean of its divisors is an integer number (38567358216).

Almost surely, 2^421802768343 is an apocalyptic number.

421802768343 is a deficient number, since it is larger than the sum of its proper divisors (195274963113).

421802768343 is a wasteful number, since it uses less digits than its factorization.

421802768343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73884014.

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 421802768343 in words is "four hundred twenty-one billion, eight hundred two million, seven hundred sixty-eight thousand, three hundred forty-three".