421645005242 has 8 divisors (see below), whose sum is σ = 652869685632. Its totient is φ = 204021776700.

The previous prime is 421645005233. The next prime is 421645005253. The reversal of 421645005242 is 242500546124.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400362884 + ... + 3400363007.

It is an arithmetic number, because the mean of its divisors is an integer number (81608710704).

Almost surely, 2^421645005242 is an apocalyptic number.

421645005242 is a deficient number, since it is larger than the sum of its proper divisors (231224680390).

421645005242 is a wasteful number, since it uses less digits than its factorization.

421645005242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800725924.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 421645005242 in words is "four hundred twenty-one billion, six hundred forty-five million, five thousand, two hundred forty-two".