49888289781 has 24 divisors (see below), whose sum is σ = 79606949760. Its totient is φ = 29852596800.

The previous prime is 49888289767. The next prime is 49888289819. The reversal of 49888289781 is 18798288894.

It is not a de Polignac number, because 49888289781 - 2⁵ = 49888289749 is a prime.

It is a super-2 number, since 2×49888289781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49888285781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3181560 + ... + 3197201.

It is an arithmetic number, because the mean of its divisors is an integer number (3316956240).

Almost surely, 2^49888289781 is an apocalyptic number.

It is an amenable number.

49888289781 is a deficient number, since it is larger than the sum of its proper divisors (29718659979).

49888289781 is a wasteful number, since it uses less digits than its factorization.

49888289781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378857 (or 6378854 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 72.

The spelling of 49888289781 in words is "forty-nine billion, eight hundred eighty-eight million, two hundred eighty-nine thousand, seven hundred eighty-one".