409449987354 has 24 divisors (see below), whose sum is σ = 822589238592. Its totient is φ = 135871197240.

The previous prime is 409449987293. The next prime is 409449987361. The reversal of 409449987354 is 453789944904.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387762 + ... + 984509.

It is an arithmetic number, because the mean of its divisors is an integer number (34274551608).

Almost surely, 2^409449987354 is an apocalyptic number.

409449987354 is an abundant number, since it is smaller than the sum of its proper divisors (413139251238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409449987354 is a wasteful number, since it uses less digits than its factorization.

409449987354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372722 (or 1372499 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 66.

The spelling of 409449987354 in words is "four hundred nine billion, four hundred forty-nine million, nine hundred eighty-seven thousand, three hundred fifty-four".