505351406402 has 8 divisors (see below), whose sum is σ = 765386596416. Its totient is φ = 250222540932.

The previous prime is 505351406393. The next prime is 505351406407. The reversal of 505351406402 is 204604153505.

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

It is not an unprimeable number, because it can be changed into a prime (505351406407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226580878 + ... + 1226581289.

It is an arithmetic number, because the mean of its divisors is an integer number (95673324552).

Almost surely, 2^505351406402 is an apocalyptic number.

505351406402 is a deficient number, since it is larger than the sum of its proper divisors (260035190014).

505351406402 is a wasteful number, since it uses less digits than its factorization.

505351406402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453162272.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 505351406402 its reverse (204604153505), we get a palindrome (709955559907).

The spelling of 505351406402 in words is "five hundred five billion, three hundred fifty-one million, four hundred six thousand, four hundred two".