49144889140 has 12 divisors (see below), whose sum is σ = 103204267236. Its totient is φ = 19657955648.

The previous prime is 49144889113. The next prime is 49144889159. The reversal of 49144889140 is 4198844194.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12180212496 + 36964676644 = 110364^2 + 192262^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228622209 + ... + 1228622248.

It is an arithmetic number, because the mean of its divisors is an integer number (8600355603).

Almost surely, 2^49144889140 is an apocalyptic number.

It is an amenable number.

49144889140 is an abundant number, since it is smaller than the sum of its proper divisors (54059378096).

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

49144889140 is a wasteful number, since it uses less digits than its factorization.

49144889140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457244466 (or 2457244464 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 49144889140 in words is "forty-nine billion, one hundred forty-four million, eight hundred eighty-nine thousand, one hundred forty".