409925551398 has 64 divisors (see below), whose sum is σ = 913291200000. Its totient is φ = 121604188160.

The previous prime is 409925551391. The next prime is 409925551417. The reversal of 409925551398 is 893155529904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409925551391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1440103 + ... + 1701101.

It is an arithmetic number, because the mean of its divisors is an integer number (14270175000).

Almost surely, 2^409925551398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 409925551398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456645600000).

409925551398 is an abundant number, since it is smaller than the sum of its proper divisors (503365648602).

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

409925551398 is a wasteful number, since it uses less digits than its factorization.

409925551398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261517.

The product of its (nonzero) digits is 17496000, while the sum is 60.

The spelling of 409925551398 in words is "four hundred nine billion, nine hundred twenty-five million, five hundred fifty-one thousand, three hundred ninety-eight".