905649142336 has 63 divisors (see below), whose sum is σ = 1836924025027. Its totient is φ = 443014901120.

The previous prime is 905649142273. The next prime is 905649142357. The reversal of 905649142336 is 633241946509.

The square root of 905649142336 is 951656.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 357821391 + ... + 357823921.

Almost surely, 2^905649142336 is an apocalyptic number.

905649142336 is the 951656-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 905649142336

905649142336 is an abundant number, since it is smaller than the sum of its proper divisors (931274882691).

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

905649142336 is an frugal number, since it uses more digits than its factorization.

905649142336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 905649142336 in words is "nine hundred five billion, six hundred forty-nine million, one hundred forty-two thousand, three hundred thirty-six".