421807012747 has 8 divisors (see below), whose sum is σ = 427836171776. Its totient is φ = 415820164032.

The previous prime is 421807012741. The next prime is 421807012787. The reversal of 421807012747 is 747210708124.

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 421807012747 - 2⁷ = 421807012619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421807012741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10557498 + ... + 10597375.

It is an arithmetic number, because the mean of its divisors is an integer number (53479521472).

Almost surely, 2^421807012747 is an apocalyptic number.

421807012747 is a deficient number, since it is larger than the sum of its proper divisors (6029159029).

421807012747 is a wasteful number, since it uses less digits than its factorization.

421807012747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21155157.

The product of its (nonzero) digits is 175616, while the sum is 43.

The spelling of 421807012747 in words is "four hundred twenty-one billion, eight hundred seven million, twelve thousand, seven hundred forty-seven".