424125421505 has 8 divisors (see below), whose sum is σ = 508969701672. Its totient is φ = 339287539968.

The previous prime is 424125421493. The next prime is 424125421649. The reversal of 424125421505 is 505124521424.

It can be written as a sum of positive squares in 4 ways, for example, as 63616441729 + 360508979776 = 252223^2 + 600424^2 .

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 424125421505 - 2⁶ = 424125421441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452602 + ... + 1719971.

It is an arithmetic number, because the mean of its divisors is an integer number (63621212709).

Almost surely, 2^424125421505 is an apocalyptic number.

It is an amenable number.

424125421505 is a deficient number, since it is larger than the sum of its proper divisors (84844280167).

424125421505 is a wasteful number, since it uses less digits than its factorization.

424125421505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199315.

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 424125421505 its reverse (505124521424), we get a palindrome (929249942929).

The spelling of 424125421505 in words is "four hundred twenty-four billion, one hundred twenty-five million, four hundred twenty-one thousand, five hundred five".