421265957745 has 8 divisors (see below), whose sum is σ = 674025532416. Its totient is φ = 224675177456.

The previous prime is 421265957689. The next prime is 421265957767. The reversal of 421265957745 is 547759562124.

It is a happy number.

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 421265957745 - 2¹⁷ = 421265826673 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14042198577 + ... + 14042198606.

It is an arithmetic number, because the mean of its divisors is an integer number (84253191552).

Almost surely, 2^421265957745 is an apocalyptic number.

It is an amenable number.

421265957745 is a deficient number, since it is larger than the sum of its proper divisors (252759574671).

421265957745 is a wasteful number, since it uses less digits than its factorization.

421265957745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28084397191.

The product of its digits is 21168000, while the sum is 57.

The spelling of 421265957745 in words is "four hundred twenty-one billion, two hundred sixty-five million, nine hundred fifty-seven thousand, seven hundred forty-five".