49771530368 has 64 divisors (see below), whose sum is σ = 113394624000. Its totient is φ = 21316442112.

The previous prime is 49771530331. The next prime is 49771530379. The reversal of 49771530368 is 86303517794.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386308 + ... + 1421756.

It is an arithmetic number, because the mean of its divisors is an integer number (1771791000).

Almost surely, 2^49771530368 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 49771530368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56697312000).

49771530368 is an abundant number, since it is smaller than the sum of its proper divisors (63623093632).

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

49771530368 is a wasteful number, since it uses less digits than its factorization.

49771530368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37037 (or 37025 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 49771530368 in words is "forty-nine billion, seven hundred seventy-one million, five hundred thirty thousand, three hundred sixty-eight".