512540040422 has 8 divisors (see below), whose sum is σ = 768856555656. Its totient is φ = 256254521872.

The previous prime is 512540040401. The next prime is 512540040437. The reversal of 512540040422 is 224040045215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7707788 + ... + 7773999.

It is an arithmetic number, because the mean of its divisors is an integer number (96107069457).

Almost surely, 2^512540040422 is an apocalyptic number.

512540040422 is a deficient number, since it is larger than the sum of its proper divisors (256316515234).

512540040422 is a wasteful number, since it uses less digits than its factorization.

512540040422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498342.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 512540040422 its reverse (224040045215), we get a palindrome (736580085637).

The spelling of 512540040422 in words is "five hundred twelve billion, five hundred forty million, forty thousand, four hundred twenty-two".