49402505768 has 128 divisors (see below), whose sum is σ = 118478868480. Its totient is φ = 18752720640.

The previous prime is 49402505743. The next prime is 49402505771. The reversal of 49402505768 is 86750520494.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6568346 + ... + 6575862.

It is an arithmetic number, because the mean of its divisors is an integer number (925616160).

Almost surely, 2^49402505768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49402505768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59239434240).

49402505768 is an abundant number, since it is smaller than the sum of its proper divisors (69076362712).

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

49402505768 is a wasteful number, since it uses less digits than its factorization.

49402505768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815 (or 7811 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 49402505768 in words is "forty-nine billion, four hundred two million, five hundred five thousand, seven hundred sixty-eight".