501412340421 has 8 divisors (see below), whose sum is σ = 742833096960. Its totient is φ = 334274893596.

The previous prime is 501412340383. The next prime is 501412340447. The reversal of 501412340421 is 124043214105.

501412340421 is a `hidden beast` number, since 5 + 0 + 1 + 4 + 1 + 234 + 0 + 421 = 666.

It is not a de Polignac number, because 501412340421 - 2⁷ = 501412340293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 18570827423 = 501412340421 / (5 + 0 + 1 + 4 + 1 + 2 + 3 + 4 + 0 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501412340461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9285413685 + ... + 9285413738.

It is an arithmetic number, because the mean of its divisors is an integer number (92854137120).

Almost surely, 2^501412340421 is an apocalyptic number.

It is an amenable number.

501412340421 is a deficient number, since it is larger than the sum of its proper divisors (241420756539).

501412340421 is a wasteful number, since it uses less digits than its factorization.

501412340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18570827432 (or 18570827426 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 501412340421 its reverse (124043214105), we get a palindrome (625455554526).

The spelling of 501412340421 in words is "five hundred one billion, four hundred twelve million, three hundred forty thousand, four hundred twenty-one".