421250041671 has 16 divisors (see below), whose sum is σ = 574855881600. Its totient is φ = 274241671200.

The previous prime is 421250041649. The next prime is 421250041691. The reversal of 421250041671 is 176140052124.

It is not a de Polignac number, because 421250041671 - 2¹⁵ = 421250008903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421250041601) 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, 227896 + ... + 945746.

It is an arithmetic number, because the mean of its divisors is an integer number (35928492600).

Almost surely, 2^421250041671 is an apocalyptic number.

421250041671 is a deficient number, since it is larger than the sum of its proper divisors (153605839929).

421250041671 is a wasteful number, since it uses less digits than its factorization.

421250041671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722446.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 421250041671 its reverse (176140052124), we get a palindrome (597390093795).

The spelling of 421250041671 in words is "four hundred twenty-one billion, two hundred fifty million, forty-one thousand, six hundred seventy-one".