49767947688 has 64 divisors (see below), whose sum is σ = 127233711360. Its totient is φ = 16215063296.

The previous prime is 49767947681. The next prime is 49767947689. The reversal of 49767947688 is 88674976794.

It is not an unprimeable number, because it can be changed into a prime (49767947681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 843406 + ... + 900482.

It is an arithmetic number, because the mean of its divisors is an integer number (1988026740).

Almost surely, 2^49767947688 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 49767947688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63616855680).

49767947688 is an abundant number, since it is smaller than the sum of its proper divisors (77465763672).

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

49767947688 is a wasteful number, since it uses less digits than its factorization.

49767947688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57906 (or 57902 counting only the distinct ones).

The product of its digits is 1024192512, while the sum is 75.

The spelling of 49767947688 in words is "forty-nine billion, seven hundred sixty-seven million, nine hundred forty-seven thousand, six hundred eighty-eight".