49788463304640 has 448 divisors, whose sum is σ = 165039526379520. Its totient is φ = 12702455009280.

The previous prime is 49788463304621. The next prime is 49788463304647. The reversal of 49788463304640 is 4640336488794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49788463304647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1860611581 + ... + 1860638339.

Almost surely, 2^{49788463304640} is an apocalyptic number.

49788463304640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49788463304640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82519763189760).

49788463304640 is an abundant number, since it is smaller than the sum of its proper divisors (115251063074880).

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

49788463304640 is a wasteful number, since it uses less digits than its factorization.

49788463304640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27520 (or 27510 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 66.

The spelling of 49788463304640 in words is "forty-nine trillion, seven hundred eighty-eight billion, four hundred sixty-three million, three hundred four thousand, six hundred forty".