49831990560 has 336 divisors, whose sum is σ = 192562816320. Its totient is φ = 12080171520.

The previous prime is 49831990541. The next prime is 49831990583. The reversal of 49831990560 is 6509913894.

49831990560 is a `hidden beast` number, since 49 + 8 + 31 + 9 + 9 + 0 + 560 = 666.

49831990560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49831990560² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 49831990497 and 49831990506.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1263621 + ... + 1302459.

It is an arithmetic number, because the mean of its divisors is an integer number (573103620).

Almost surely, 2^49831990560 is an apocalyptic number.

49831990560 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 49831990560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96281408160).

49831990560 is an abundant number, since it is smaller than the sum of its proper divisors (142730825760).

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

49831990560 is a wasteful number, since it uses less digits than its factorization.

49831990560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38883 (or 38860 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 49831990560 in words is "forty-nine billion, eight hundred thirty-one million, nine hundred ninety thousand, five hundred sixty".