405254105104 has 10 divisors (see below), whose sum is σ = 785179828670. Its totient is φ = 202627052544.

The previous prime is 405254105099. The next prime is 405254105131. The reversal of 405254105104 is 401501452504.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 246254137600 + 158999967504 = 496240^2 + 398748^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12664190769 + ... + 12664190800.

It is an arithmetic number, because the mean of its divisors is an integer number (78517982867).

Almost surely, 2^405254105104 is an apocalyptic number.

It is an amenable number.

405254105104 is a deficient number, since it is larger than the sum of its proper divisors (379925723566).

405254105104 is a wasteful number, since it uses less digits than its factorization.

405254105104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25328381577 (or 25328381571 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 405254105104 its reverse (401501452504), we get a palindrome (806755557608).

The spelling of 405254105104 in words is "four hundred five billion, two hundred fifty-four million, one hundred five thousand, one hundred four".