49171699780 has 96 divisors (see below), whose sum is σ = 119993319936. Its totient is φ = 16578072576.

The previous prime is 49171699769. The next prime is 49171699799. The reversal of 49171699780 is 8799617194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2120529 + ... + 2143591.

It is an arithmetic number, because the mean of its divisors is an integer number (1249930416).

Almost surely, 2^49171699780 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 49171699780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59996659968).

49171699780 is an abundant number, since it is smaller than the sum of its proper divisors (70821620156).

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

49171699780 is a wasteful number, since it uses less digits than its factorization.

49171699780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333 (or 23331 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 49171699780 in words is "forty-nine billion, one hundred seventy-one million, six hundred ninety-nine thousand, seven hundred eighty".