405525445904 has 10 divisors (see below), whose sum is σ = 785705551470. Its totient is φ = 202762722944.

The previous prime is 405525445891. The next prime is 405525445909. The reversal of 405525445904 is 409544525504.

It can be written as a sum of positive squares in only one way, i.e., 268373730304 + 137151715600 = 518048^2 + 370340^2 .

It is not an unprimeable number, because it can be changed into a prime (405525445909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12672670169 + ... + 12672670200.

It is an arithmetic number, because the mean of its divisors is an integer number (78570555147).

Almost surely, 2^405525445904 is an apocalyptic number.

It is an amenable number.

405525445904 is a deficient number, since it is larger than the sum of its proper divisors (380180105566).

405525445904 is a wasteful number, since it uses less digits than its factorization.

405525445904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25345340377 (or 25345340371 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 47.

The spelling of 405525445904 in words is "four hundred five billion, five hundred twenty-five million, four hundred forty-five thousand, nine hundred four".