49809049290 has 576 divisors, whose sum is σ = 186343597440. Its totient is φ = 9048775680.

The previous prime is 49809049261. The next prime is 49809049313. The reversal of 49809049290 is 9294090894.

49809049290 is a `hidden beast` number, since 498 + 0 + 90 + 49 + 29 + 0 = 666.

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 287 ways as a sum of consecutive naturals, for example, 11979892 + ... + 11984048.

It is an arithmetic number, because the mean of its divisors is an integer number (323513190).

Almost surely, 2^49809049290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49809049290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93171798720).

49809049290 is an abundant number, since it is smaller than the sum of its proper divisors (136534548150).

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

49809049290 is a wasteful number, since it uses less digits than its factorization.

49809049290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227 (or 4217 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 49809049290 in words is "forty-nine billion, eight hundred nine million, forty-nine thousand, two hundred ninety".