49404189122 has 18 divisors (see below), whose sum is σ = 75170258667. Its totient is φ = 24352393536.

The previous prime is 49404189097. The next prime is 49404189169. The reversal of 49404189122 is 22198140494.

It can be written as a sum of positive squares in 5 ways, for example, as 5588908081 + 43815281041 = 74759^2 + 209321^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=157169.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22945598 + ... + 22947750.

Almost surely, 2^49404189122 is an apocalyptic number.

49404189122 is a deficient number, since it is larger than the sum of its proper divisors (25766069545).

49404189122 is an frugal number, since it uses more digits than its factorization.

49404189122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 49404189122 in words is "forty-nine billion, four hundred four million, one hundred eighty-nine thousand, one hundred twenty-two".