405332450112545 has 4 divisors (see below), whose sum is σ = 486398940135060. Its totient is φ = 324265960090032.

The previous prime is 405332450112407. The next prime is 405332450112599. The reversal of 405332450112545 is 545211054233504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134486303693329 + 270846146419216 = 11596823^2 + 16457404^2 .

It is a cyclic number.

It is not a de Polignac number, because 405332450112545 - 2¹⁸ = 405332449850401 is a prime.

It is a super-2 number, since 2×405332450112545² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 405332450112496 and 405332450112505.

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, 40533245011250 + ... + 40533245011259.

It is an arithmetic number, because the mean of its divisors is an integer number (121599735033765).

Almost surely, 2^{405332450112545} is an apocalyptic number.

It is an amenable number.

405332450112545 is a deficient number, since it is larger than the sum of its proper divisors (81066490022515).

405332450112545 is an equidigital number, since it uses as much as digits as its factorization.

405332450112545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81066490022514.

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 405332450112545 in words is "four hundred five trillion, three hundred thirty-two billion, four hundred fifty million, one hundred twelve thousand, five hundred forty-five".