421586145950 has 12 divisors (see below), whose sum is σ = 784150231560. Its totient is φ = 168634458360.

The previous prime is 421586145941. The next prime is 421586146001. The reversal of 421586145950 is 59541685124.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 8431722919 = 421586145950 / (4 + 2 + 1 + 5 + 8 + 6 + 1 + 4 + 5 + 9 + 5 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4215861410 + ... + 4215861509.

It is an arithmetic number, because the mean of its divisors is an integer number (65345852630).

Almost surely, 2^421586145950 is an apocalyptic number.

421586145950 is a deficient number, since it is larger than the sum of its proper divisors (362564085610).

421586145950 is a wasteful number, since it uses less digits than its factorization.

421586145950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431722931 (or 8431722926 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 421586145950 in words is "four hundred twenty-one billion, five hundred eighty-six million, one hundred forty-five thousand, nine hundred fifty".